$GWH
ESS Tech, Inc. Stock $gwh

$gwh Overview Financials Valuation SEC Filings Company Website

2024 Q3 Form 10-Q Financial Statement

#000162828024037276 Filed on August 14, 2024

Income Statement

Concept	2024 Q3	2024 Q2	2023 Q2
Revenue	$359.0K	$348.0K	$2.827M
YoY Change	-76.76%	-87.69%	312.1%
Cost Of Revenue	$12.74M	$11.75M	$0.00
YoY Change	25.12%
Gross Profit	-$12.38M	-$11.40M	$2.827M
YoY Change	43.34%	-503.25%
Gross Profit Margin	-3449.03%	-3275.86%	100.0%
Selling, General & Admin	$8.616M	$8.889M	$7.584M
YoY Change	9.24%	17.21%	-12.8%
% of Gross Profit			268.27%
Research & Development	$2.684M	$2.836M	$19.45M
YoY Change	66.81%	-85.42%	20.32%
% of Gross Profit			688.01%
Depreciation & Amortization	$700.0K	$1.200M	$1.000M
YoY Change	-36.36%	20.0%	283.14%
% of Gross Profit			35.37%
Operating Expenses	$11.30M	$11.73M	$27.03M
YoY Change	19.0%	-56.63%	8.74%
Operating Profit	-$23.68M	-$23.13M	-$24.21M
YoY Change	30.59%	-4.47%	0.13%
Interest Expense	$807.0K	$1.052M	$1.220M
YoY Change	-46.2%	-13.77%	78.1%
% of Operating Profit
Other Income/Expense, Net	$1.189M	$1.185M	$1.278M
YoY Change	-21.57%	-7.28%	-85.12%
Pretax Income			-$22.93M
YoY Change			47.1%
Income Tax	$0.00	$0.00	$0.00
% Of Pretax Income
Net Earnings	-$22.49M	-$21.94M	-$22.93M
YoY Change	35.35%	-4.31%	47.09%
Net Earnings / Revenue	-6265.46%	-6304.6%	-811.07%
Basic Earnings Per Share	-$1.90	-$0.12	-$0.15
Diluted Earnings Per Share	-$1.90	-$0.12	-$0.15
COMMON SHARES
Basic Shares Outstanding	176.8M shares	174.9M shares	154.4M shares
Diluted Shares Outstanding	11.81M shares	175.8M shares	154.9M shares

Balance Sheet

Concept	2024 Q3	2024 Q2	2023 Q2
SHORT-TERM ASSETS
Cash & Short-Term Investments			$99.50M
YoY Change			-48.22%
Cash & Equivalents	$12.80M	$36.74M	$30.29M
Short-Term Investments			$69.20M
Other Short-Term Assets			$4.400M
YoY Change			-5.64%
Inventory	$7.037M	$4.425M
Prepaid Expenses
Receivables	$413.0K	$981.0K	$1.393M
Other Receivables			$0.00
Total Short-Term Assets	$68.55M	$84.66M	$105.4M
YoY Change	-47.84%	-19.69%	-47.13%
LONG-TERM ASSETS
Property, Plant & Equipment	$19.86M	$17.76M	$18.48M
YoY Change	10.4%	-3.92%	48.33%
Goodwill
YoY Change
Intangibles	$4.723M	$4.790M
YoY Change	-5.35%
Long-Term Investments
YoY Change
Other Assets	$763.0K	$785.0K	$115.0K
YoY Change	-7.4%	582.61%	-50.85%
Total Long-Term Assets	$28.14M	$26.47M	$22.34M
YoY Change	3.35%	18.51%	33.37%
TOTAL ASSETS
Total Short-Term Assets	$68.55M	$84.66M	$105.4M
Total Long-Term Assets	$28.14M	$26.47M	$22.34M
Total Assets	$96.70M	$111.1M	$127.8M
YoY Change	-39.05%	-13.01%	-40.89%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$10.94M	$5.833M	$2.838M
YoY Change	242.64%	105.53%	97.77%
Accrued Expenses			$15.00M
YoY Change			50.62%
Deferred Revenue	$6.000M	$5.700M	$3.200M
YoY Change	328.57%	78.13%	-52.96%
Short-Term Debt			$0.00
YoY Change
Long-Term Debt Due			$1.127M
YoY Change			-60.15%
Total Short-Term Liabilities	$32.08M	$26.00M	$22.71M
YoY Change	72.1%	14.53%	3.14%
LONG-TERM LIABILITIES
Long-Term Debt			$0.00
YoY Change
Other Long-Term Liabilities	$109.0K		$0.00
YoY Change			-100.0%
Total Long-Term Liabilities	$109.0K		$0.00
YoY Change			-100.0%
TOTAL LIABILITIES
Total Short-Term Liabilities	$32.08M	$26.00M	$22.71M
Total Long-Term Liabilities	$109.0K		$0.00
Total Liabilities	$47.50M	$42.09M	$30.46M
YoY Change	12.55%	38.2%	4.05%
SHAREHOLDERS EQUITY
Retained Earnings	-$758.9M	-$736.4M	-$663.4M
YoY Change	11.6%	11.0%	18.06%
Common Stock	$1.000K	$18.00K	$16.00K
YoY Change	-94.44%	12.5%	0.0%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$49.20M	$69.04M	$97.30M
YoY Change
Total Liabilities & Shareholders Equity	$96.70M	$111.1M	$127.8M
YoY Change	-39.05%	-13.01%	-40.89%

Cashflow Statement

Concept	2024 Q3	2024 Q2	2023 Q2
OPERATING ACTIVITIES
Net Income	-$22.49M	-$21.94M	-$22.93M
YoY Change	35.35%	-4.31%	47.09%
Depreciation, Depletion And Amortization	$700.0K	$1.200M	$1.000M
YoY Change	-36.36%	20.0%	283.14%
Cash From Operating Activities			-$19.02M
YoY Change			25.47%
INVESTING ACTIVITIES
Capital Expenditures			$830.0K
YoY Change			-118.77%
Acquisitions
YoY Change
Other Investing Activities			-$37.31M
YoY Change			-53.13%
Cash From Investing Activities			-$38.14M
YoY Change			-54.61%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities			-140.0K
YoY Change			-68.4%
NET CHANGE
Cash From Operating Activities			-19.02M
Cash From Investing Activities			-38.14M
Cash From Financing Activities			-140.0K
Net Change In Cash			-57.30M
YoY Change			-42.48%
FREE CASH FLOW
Cash From Operating Activities			-$19.02M
Capital Expenditures			$830.0K
Free Cash Flow			-$19.85M
YoY Change			84.87%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2023Q4	us-gaap	Liabilities Liabilities	39875000	usd
CY2024Q2	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		usd
CY2023Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.0001
CY2024Q2	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.0001
CY2023Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	200000000	shares
CY2024Q2	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	200000000	shares
CY2024Q2	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2023Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2024Q2	us-gaap	Preferred Stock Value PreferredStockValue	0	usd
CY2023Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	usd
CY2024Q2	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.0001
CY2023Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.0001
CY2023Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	2000000000	shares
CY2024Q2	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	2000000000	shares
CY2024Q2	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	176822039	shares
CY2023Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	174211911	shares
CY2023Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	174211911	shares
CY2024Q2	us-gaap	Common Stock Value CommonStockValue	18000	usd
CY2023Q4	us-gaap	Common Stock Value CommonStockValue	18000	usd
CY2024Q2	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	805433000	usd
CY2023Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	799496000	usd
CY2024Q2	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-736407000	usd
CY2023Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-696157000	usd
CY2024Q2	us-gaap	Stockholders Equity StockholdersEquity	69044000	usd
CY2023Q4	us-gaap	Stockholders Equity StockholdersEquity	103357000	usd
CY2024Q2	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	111133000	usd
CY2023Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	143232000	usd
CY2024Q2	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	348000	usd
CY2023Q2	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	2827000	usd
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-44830000	usd
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	154514265	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	154514265	shares
CY2024Q2	us-gaap	Operating Expenses OperatingExpenses	11725000	usd
CY2024Q2	us-gaap	Product Warranty Accrual Classified Current ProductWarrantyAccrualClassifiedCurrent	3240000	usd
CY2023Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2024Q2	us-gaap	Government Assistance Current Statement Of Financial Position Extensible Enumeration GovernmentAssistanceCurrentStatementOfFinancialPositionExtensibleEnumeration	http://fasb.org/us-gaap/2024#PrepaidExpenseAndOtherAssetsCurrent
CY2024Q2	us-gaap	Liabilities Liabilities	42089000	usd
CY2024Q2	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2024Q2	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	176822039	shares
CY2024Q2	us-gaap	Cost Of Revenue CostOfRevenue	11748000	usd
CY2023Q2	us-gaap	Cost Of Revenue CostOfRevenue	0	usd
CY2024Q2	us-gaap	Gross Profit GrossProfit	-11400000	usd
CY2023Q2	us-gaap	Gross Profit GrossProfit	2827000	usd
CY2024Q2	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	2836000	usd
CY2023Q2	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	19450000	usd
CY2024Q2	us-gaap	Selling And Marketing Expense SellingAndMarketingExpense	2711000	usd
CY2023Q2	us-gaap	Selling And Marketing Expense SellingAndMarketingExpense	1739000	usd
CY2024Q2	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	6178000	usd
CY2023Q2	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	5845000	usd
CY2023Q2	us-gaap	Operating Expenses OperatingExpenses	27034000	usd
CY2024Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	-23125000	usd
CY2023Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	-24207000	usd
CY2024Q2	us-gaap	Interest Income Expense Nonoperating Net InterestIncomeExpenseNonoperatingNet	1052000	usd
CY2023Q2	us-gaap	Interest Income Expense Nonoperating Net InterestIncomeExpenseNonoperatingNet	1330000	usd
CY2024Q2	us-gaap	Fair Value Adjustment Of Warrants FairValueAdjustmentOfWarrants	-115000	usd
CY2023Q2	us-gaap	Fair Value Adjustment Of Warrants FairValueAdjustmentOfWarrants	115000	usd
CY2024Q2	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	18000	usd
CY2023Q2	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	63000	usd
CY2024Q2	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	1185000	usd
CY2023Q2	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	1278000	usd
CY2024Q2	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-21940000	usd
CY2024Q2	us-gaap	Net Income Loss NetIncomeLoss	-21940000	usd
CY2023Q2	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-22929000	usd
CY2023Q2	us-gaap	Net Income Loss NetIncomeLoss	-22929000	usd
	us-gaap	Net Income Loss NetIncomeLoss	-44830000	usd
CY2024Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.12
CY2024Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.12
CY2023Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.15
CY2023Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.15
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.29
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.29
CY2024Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	175758584	shares
CY2024Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	175758584	shares
CY2022Q4	us-gaap	Stockholders Equity StockholdersEquity	136974000	usd
CY2023Q1	ghw	Stock Issued During Period Value Stock Compensation Plan StockIssuedDuringPeriodValueStockCompensationPlan	104000	usd
CY2023Q1	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	2059000	usd
CY2023Q1	us-gaap	Net Income Loss NetIncomeLoss	-21901000	usd
CY2023Q1	us-gaap	Stockholders Equity StockholdersEquity	117236000	usd
CY2023Q2	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	268000	usd
CY2023Q2	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	2725000	usd
CY2023Q2	us-gaap	Net Income Loss NetIncomeLoss	-22929000	usd
CY2023Q2	us-gaap	Stockholders Equity StockholdersEquity	97300000	usd
CY2023Q4	us-gaap	Stockholders Equity StockholdersEquity	103357000	usd
CY2024Q1	ghw	Stock Issued During Period Value Stock Compensation Plan StockIssuedDuringPeriodValueStockCompensationPlan	-81000	usd
CY2024Q1	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	2854000	usd
CY2024Q1	us-gaap	Net Income Loss NetIncomeLoss	-18310000	usd
CY2024Q1	us-gaap	Stockholders Equity StockholdersEquity	87820000	usd
CY2024Q2	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	138000	usd
CY2024Q2	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	3026000	usd
CY2024Q2	us-gaap	Net Income Loss NetIncomeLoss	-21940000	usd
CY2024Q2	us-gaap	Stockholders Equity StockholdersEquity	69044000	usd
	us-gaap	Net Income Loss NetIncomeLoss	-44830000	usd
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	2521000	usd
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	2105000	usd
	ghw	Non Cash Interest Income NonCashInterestIncome	-1573000	usd
	ghw	Non Cash Interest Income NonCashInterestIncome	-1487000	usd
	ghw	Noncash Operating Lease Expense NoncashOperatingLeaseExpense	658000	usd
	ghw	Noncash Operating Lease Expense NoncashOperatingLeaseExpense	604000	usd
	us-gaap	Share Based Compensation ShareBasedCompensation	5880000	usd
	us-gaap	Share Based Compensation ShareBasedCompensation	4784000	usd
	us-gaap	Inventory Write Down InventoryWriteDown	1530000	usd
	us-gaap	Inventory Write Down InventoryWriteDown	0	usd
	us-gaap	Fair Value Adjustment Of Warrants FairValueAdjustmentOfWarrants	-115000	usd
	us-gaap	Fair Value Adjustment Of Warrants FairValueAdjustmentOfWarrants	-573000	usd
	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-25000	usd
	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	33000	usd
	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-1526000	usd
	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-4653000	usd
	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	2875000	usd
	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	0	usd
	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	555000	usd
	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-2561000	usd
	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	1925000	usd
	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-664000	usd
	ghw	Increase Decrease In Accrued Liabilities And Other Current Liabilities IncreaseDecreaseInAccruedLiabilitiesAndOtherCurrentLiabilities	-1962000	usd
	ghw	Increase Decrease In Accrued Liabilities And Other Current Liabilities IncreaseDecreaseInAccruedLiabilitiesAndOtherCurrentLiabilities	-4234000	usd
	ghw	Increase Decrease In Product Warranty Accrual IncreaseDecreaseInProductWarrantyAccrual	1111000	usd
	ghw	Increase Decrease In Product Warranty Accrual IncreaseDecreaseInProductWarrantyAccrual	3460000	usd
	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	-1209000	usd
	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	-3189000	usd
	us-gaap	Increase Decrease In Operating Lease Liability IncreaseDecreaseInOperatingLeaseLiability	-768000	usd
	us-gaap	Increase Decrease In Operating Lease Liability IncreaseDecreaseInOperatingLeaseLiability	-689000	usd
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-34131000	usd
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-37532000	usd
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	1565000	usd
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	3440000	usd
	us-gaap	Payments For Proceeds From Short Term Investments PaymentsForProceedsFromShortTermInvestments	-51752000	usd
	us-gaap	Payments For Proceeds From Short Term Investments PaymentsForProceedsFromShortTermInvestments	-37363000	usd
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	50187000	usd
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	33923000	usd
	us-gaap	Repayments Of Notes Payable RepaymentsOfNotesPayable	0	usd
	us-gaap	Repayments Of Notes Payable RepaymentsOfNotesPayable	800000	usd
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	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	122000	usd
	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	178000	usd
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	us-gaap	Proceeds From Stock Plans ProceedsFromStockPlans	332000	usd
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	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-14000	usd
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	57000	usd
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-442000	usd
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	16113000	usd
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-4051000	usd
CY2023Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	22483000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	36655000	usd
CY2024Q2	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	38596000	usd
CY2023Q2	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	32604000	usd
	us-gaap	Operating Lease Payments OperatingLeasePayments	874000	usd
	us-gaap	Operating Lease Payments OperatingLeasePayments	827000	usd
	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	1970000	usd
	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	931000	usd
	ghw	Adjustment To Right Of Use Assets From Lease Modification AdjustmentToRightOfUseAssetsFromLeaseModification	686000	usd
	ghw	Adjustment To Right Of Use Assets From Lease Modification AdjustmentToRightOfUseAssetsFromLeaseModification	0	usd
	ghw	Transfers Between Inventory And Property And Equipment Net TransfersBetweenInventoryAndPropertyAndEquipmentNet	1051000	usd
	ghw	Transfers Between Inventory And Property And Equipment Net TransfersBetweenInventoryAndPropertyAndEquipmentNet	0	usd
CY2024Q2	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	36744000	usd
CY2023Q2	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	30287000	usd
CY2024Q2	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	906000	usd
CY2023Q2	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	1373000	usd
CY2024Q2	us-gaap	Restricted Cash And Cash Equivalents Noncurrent RestrictedCashAndCashEquivalentsNoncurrent	946000	usd
CY2023Q2	us-gaap	Restricted Cash And Cash Equivalents Noncurrent RestrictedCashAndCashEquivalentsNoncurrent	944000	usd
CY2024Q2	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	38596000	usd
CY2023Q2	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	32604000	usd
	ghw	Battery Flexible Energy Capacity Minimum BatteryFlexibleEnergyCapacityMinimum	4	h
	us-gaap	Prior Period Reclassification Adjustment Description PriorPeriodReclassificationAdjustmentDescription	<div style="margin-top:6pt;padding-left:18pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Reclassifications</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">—Certain immaterial prior year amounts have been reclassified to conform with current year presentation. These reclassifications had no effect on the reported results of operations.</span></div>
CY2024Q2	us-gaap	Inventory Raw Materials InventoryRawMaterials	7796000	usd
CY2023Q4	us-gaap	Inventory Raw Materials InventoryRawMaterials	7740000	usd
CY2024Q2	us-gaap	Inventory Work In Process InventoryWorkInProcess	3654000	usd
CY2023Q4	us-gaap	Inventory Work In Process InventoryWorkInProcess	1236000	usd
CY2024Q2	us-gaap	Inventory Finished Goods InventoryFinishedGoods	5035000	usd
CY2023Q4	us-gaap	Inventory Finished Goods InventoryFinishedGoods	5685000	usd
CY2024Q2	us-gaap	Inventory Gross InventoryGross	16485000	usd
CY2023Q4	us-gaap	Inventory Gross InventoryGross	14661000	usd
CY2024Q2	us-gaap	Inventory Adjustments InventoryAdjustments	12060000	usd
CY2023Q4	us-gaap	Inventory Adjustments InventoryAdjustments	11295000	usd
CY2024Q2	us-gaap	Inventory Net InventoryNet	4425000	usd
CY2023Q4	us-gaap	Inventory Net InventoryNet	3366000	usd
CY2024Q2	us-gaap	Inventory Adjustments InventoryAdjustments	12100000	usd
CY2023Q4	us-gaap	Inventory Adjustments InventoryAdjustments	11300000	usd
CY2024Q2	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	29428000	usd
CY2023Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	25547000	usd
CY2024Q2	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	11670000	usd
CY2023Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	9281000	usd
CY2024Q2	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	17758000	usd
CY2023Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	16266000	usd
CY2024Q2	us-gaap	Depreciation Depreciation	1200000	usd
CY2023Q2	us-gaap	Depreciation Depreciation	1000000.0	usd
	us-gaap	Depreciation Depreciation	2400000	usd
	us-gaap	Depreciation Depreciation	2100000	usd
CY2024Q2	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	67000	usd
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	134000	usd
CY2024Q2	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	3711000	usd
CY2023Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	5681000	usd
CY2024Q2	ghw	Materials And Related Purchases Current MaterialsAndRelatedPurchasesCurrent	3234000	usd
CY2023Q4	ghw	Materials And Related Purchases Current MaterialsAndRelatedPurchasesCurrent	2083000	usd
CY2024Q2	us-gaap	Accrued Professional Fees Current AccruedProfessionalFeesCurrent	515000	usd
CY2023Q4	us-gaap	Accrued Professional Fees Current AccruedProfessionalFeesCurrent	802000	usd
CY2024Q2	us-gaap	Customer Refund Liability Current CustomerRefundLiabilityCurrent	0	usd
CY2023Q4	us-gaap	Customer Refund Liability Current CustomerRefundLiabilityCurrent	545000	usd
CY2024Q2	ghw	Accrued Capital Expenditures AccruedCapitalExpenditures	283000	usd
CY2023Q4	ghw	Accrued Capital Expenditures AccruedCapitalExpenditures	327000	usd
CY2024Q2	us-gaap	Purchase Commitment Remaining Minimum Amount Committed PurchaseCommitmentRemainingMinimumAmountCommitted	1402000	usd
CY2023Q4	us-gaap	Purchase Commitment Remaining Minimum Amount Committed PurchaseCommitmentRemainingMinimumAmountCommitted	637000	usd
CY2024Q2	ghw	Other Accrued Liability And Other Liabilities Current OtherAccruedLiabilityAndOtherLiabilitiesCurrent	524000	usd
CY2023Q4	ghw	Other Accrued Liability And Other Liabilities Current OtherAccruedLiabilityAndOtherLiabilitiesCurrent	680000	usd
CY2024Q2	ghw	Accrued Liabilities And Other Current Liabilities AccruedLiabilitiesAndOtherCurrentLiabilities	9669000	usd
CY2023Q4	ghw	Accrued Liabilities And Other Current Liabilities AccruedLiabilitiesAndOtherCurrentLiabilities	10755000	usd
CY2024Q1	us-gaap	Product Warranty Accrual Classified Current ProductWarrantyAccrualClassifiedCurrent	3322000	usd
CY2023Q1	us-gaap	Product Warranty Accrual Classified Current ProductWarrantyAccrualClassifiedCurrent	2874000	usd
CY2023Q4	us-gaap	Product Warranty Accrual Classified Current ProductWarrantyAccrualClassifiedCurrent	2129000	usd
CY2022Q4	us-gaap	Product Warranty Accrual Classified Current ProductWarrantyAccrualClassifiedCurrent	1643000	usd
CY2024Q2	us-gaap	Standard Product Warranty Accrual Warranties Issued StandardProductWarrantyAccrualWarrantiesIssued	40000	usd
CY2023Q2	us-gaap	Standard Product Warranty Accrual Warranties Issued StandardProductWarrantyAccrualWarrantiesIssued	3674000	usd
	us-gaap	Standard Product Warranty Accrual Warranties Issued StandardProductWarrantyAccrualWarrantiesIssued	2568000	usd
	us-gaap	Standard Product Warranty Accrual Warranties Issued StandardProductWarrantyAccrualWarrantiesIssued	5178000	usd
CY2024Q2	us-gaap	Standard Product Warranty Accrual Payments StandardProductWarrantyAccrualPayments	68000	usd
CY2023Q2	us-gaap	Standard Product Warranty Accrual Payments StandardProductWarrantyAccrualPayments	789000	usd
	us-gaap	Standard Product Warranty Accrual Payments StandardProductWarrantyAccrualPayments	702000	usd
	us-gaap	Standard Product Warranty Accrual Payments StandardProductWarrantyAccrualPayments	1062000	usd
CY2024Q2	us-gaap	Standard Product Warranty Accrual Preexisting Increase Decrease StandardProductWarrantyAccrualPreexistingIncreaseDecrease	-54000	usd
CY2023Q2	us-gaap	Standard Product Warranty Accrual Preexisting Increase Decrease StandardProductWarrantyAccrualPreexistingIncreaseDecrease	-656000	usd
	us-gaap	Standard Product Warranty Accrual Preexisting Increase Decrease StandardProductWarrantyAccrualPreexistingIncreaseDecrease	-755000	usd
	us-gaap	Standard Product Warranty Accrual Preexisting Increase Decrease StandardProductWarrantyAccrualPreexistingIncreaseDecrease	-656000	usd
CY2024Q2	us-gaap	Product Warranty Accrual Classified Current ProductWarrantyAccrualClassifiedCurrent	3240000	usd
CY2023Q2	us-gaap	Product Warranty Accrual Classified Current ProductWarrantyAccrualClassifiedCurrent	5103000	usd
CY2023Q2	us-gaap	Product Warranty Accrual Classified Current ProductWarrantyAccrualClassifiedCurrent	5103000	usd
CY2024Q2	us-gaap	Certificates Of Deposit At Carrying Value CertificatesOfDepositAtCarryingValue	75000	usd
CY2024Q2	us-gaap	Class Of Warrant Or Right Outstanding ClassOfWarrantOrRightOutstanding	29151075	shares
CY2023Q4	us-gaap	Class Of Warrant Or Right Outstanding ClassOfWarrantOrRightOutstanding	29151075	shares
CY2021Q4	ghw	Class Of Warrant Or Right Conversion Ratio ClassOfWarrantOrRightConversionRatio	1
CY2023Q4	us-gaap	Class Of Warrant Or Right Outstanding ClassOfWarrantOrRightOutstanding	29151075	shares
	ghw	Class Of Warrant Or Right Grants In Period ClassOfWarrantOrRightGrantsInPeriod	0	shares
	ghw	Class Of Warrant Or Right Exercises In Period ClassOfWarrantOrRightExercisesInPeriod	0	shares
CY2022Q4	us-gaap	Class Of Warrant Or Right Outstanding ClassOfWarrantOrRightOutstanding	11473727	shares
	ghw	Class Of Warrant Or Right Grants In Period ClassOfWarrantOrRightGrantsInPeriod	0	shares
	ghw	Class Of Warrant Or Right Exercises In Period ClassOfWarrantOrRightExercisesInPeriod	0	shares
CY2023Q2	us-gaap	Class Of Warrant Or Right Outstanding ClassOfWarrantOrRightOutstanding	11473727	shares
CY2024Q2	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	3026000	usd
CY2023Q2	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	2725000	usd
	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	5880000	usd
	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	4784000	usd
CY2024Q2	ghw	Share Based Compensation Arrangement By Share Based Payment Awards Potential Increase In Shares Authorized Percentage Of Shares Outstanding ShareBasedCompensationArrangementByShareBasedPaymentAwardsPotentialIncreaseInSharesAuthorizedPercentageOfSharesOutstanding	0.05
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Award Vesting Period1 ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1	P3Y
CY2023Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	2598382	shares
CY2023Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	1.33
CY2023	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P6Y3M
CY2023Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	1422000	usd
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	0	shares
	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	0
	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	48867	shares
	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	0.44
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	10972	shares
	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	0.54
CY2024Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	2538543	shares
CY2024Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	1.35
	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P6Y4M13D
CY2024Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	807000	usd
CY2023Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableNumber	1775256	shares
CY2023Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageExercisePrice	1.10
CY2023	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested And Expected To Vest Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageRemainingContractualTerm1	P5Y7M13D
CY2023Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Exercisable Aggregate Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableAggregateIntrinsicValue	1198000	usd
CY2024Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableNumber	1936099	shares
CY2024Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageExercisePrice	1.17
	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested And Expected To Vest Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageRemainingContractualTerm1	P5Y9M10D
CY2024Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Exercisable Aggregate Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableAggregateIntrinsicValue	756000	usd
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	0	shares
CY2023Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	0	shares
CY2024Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	0	shares
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	0	shares
CY2024Q2	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	26000000.0	usd
	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P2Y10M9D
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	0	usd
CY2023Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	0	usd
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	0	usd
CY2024Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	0	usd
CY2024Q2	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	348000	usd
CY2023Q2	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	2827000	usd
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	3086000	usd
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	3199000	usd
CY2024Q2	us-gaap	Contract With Customer Asset Net ContractWithCustomerAssetNet	126000	usd
CY2023Q4	us-gaap	Contract With Customer Asset Net ContractWithCustomerAssetNet	253000	usd
CY2024Q2	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	20089000	usd
CY2023Q4	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	20781000	usd
	us-gaap	Increase Decrease In Contract With Customer Asset IncreaseDecreaseInContractWithCustomerAsset	127000	usd
	ghw	Contract With Customer Liability Period Increase Decrease ContractWithCustomerLiabilityPeriodIncreaseDecrease	700000	usd
	ghw	Contract With Customer Liability Advance Payment ContractWithCustomerLiabilityAdvancePayment	200000	usd
	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	900000	usd
CY2024Q2	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	5700000	usd
CY2024Q2	us-gaap	Contract With Customer Liability Noncurrent ContractWithCustomerLiabilityNoncurrent	14400000	usd
CY2024Q2	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	-21940000	usd
CY2024Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-21940000	usd
CY2023Q2	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	-22929000	usd
CY2023Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-22929000	usd
	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	-40250000	usd
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-40250000	usd
	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	-44830000	usd
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-44830000	usd
CY2024Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	175758584	shares
CY2024Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	175758584	shares
CY2023Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	154900330	shares
CY2023Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	154900330	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	175136561	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	175136561	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	154514265	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	154514265	shares
CY2024Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.12
CY2024Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.12
CY2023Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.15
CY2023Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.15
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.23
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.23
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.29
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.29
	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	51462196	shares
	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	26662110	shares
CY2024Q2	ecd	Rule10b51 Arr Adopted Flag Rule10b51ArrAdoptedFlag	false
CY2024Q2	ecd	Non Rule10b51 Arr Adopted Flag NonRule10b51ArrAdoptedFlag	false
CY2024Q2	ecd	Rule10b51 Arr Trmntd Flag Rule10b51ArrTrmntdFlag	false
CY2024Q2	ecd	Non Rule10b51 Arr Trmntd Flag NonRule10b51ArrTrmntdFlag	false

Files In Submission

Name	View Source	Status
0001628280-24-037276-index-headers.html	Edgar Link	pending
0001628280-24-037276-index.html	Edgar Link	pending
0001628280-24-037276.txt	Edgar Link	pending
0001628280-24-037276-xbrl.zip	Edgar Link	pending
exhibit311-ceocertq22024.htm	Edgar Link	pending
exhibit312-cfocertq22024.htm	Edgar Link	pending
exhibit321-ceocertq22024.htm	Edgar Link	pending
exhibit322-cfocertq22024.htm	Edgar Link	pending
Financial_Report.xlsx	Edgar Link	pending
ghw-20240630.htm	Edgar Link	pending
ghw-20240630.xsd	Edgar Link	pending
ghw-20240630_cal.xml	Edgar Link	unprocessable
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R5.htm	Edgar Link	pending
R50.htm	Edgar Link	pending
R51.htm	Edgar Link	pending
R52.htm	Edgar Link	pending
ghw-20240630_lab.xml	Edgar Link	unprocessable
ghw-20240630_pre.xml	Edgar Link	unprocessable
ghw-20240630_htm.xml	Edgar Link	completed
R53.htm	Edgar Link	pending
R54.htm	Edgar Link	pending
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R7.htm	Edgar Link	pending
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R9.htm	Edgar Link	pending
report.css	Edgar Link	pending
Show.js	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
ghw-20240630_def.xml	Edgar Link	unprocessable

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$GWH
ESS Tech, Inc. Stock $gwh

2024 Q3 Form 10-Q Financial Statement

#000162828024037276 Filed on August 14, 2024

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$GWH ESS Tech, Inc. Stock $gwh

2024 Q3 Form 10-Q Financial Statement

#000162828024037276 Filed on August 14, 2024

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$GWH
ESS Tech, Inc. Stock $gwh