0001819438False00018194382024-08-142024-08-140001819438wk:CommonStock0.0001ParValuePerShareMember2024-08-142024-08-140001819438wk:WarrantsEachWholeWarrantExercisableForOneShareOfCommonStockAtAnExercisePriceOf11.50Member2024-08-142024-08-14

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 8-K
CURRENT REPORT
Pursuant to Section 13 or 15(d)
of the Securities Exchange Act of 1934
Date of report (Date of earliest event reported): August 14, 2024
ESS TECH, INC.
(Exact Name of Registrant as Specified in Charter)
Delaware001-3952598-1550150
(State or other jurisdiction
of incorporation)
(Commission
File Number)
(I.R.S. Employer
Identification Number)
26440 SW Parkway Ave., Bldg. 83
Wilsonville, Oregon
 97070
(Address of principal executive offices) (Zip code)
(855) 423-9920
(Registrant’s telephone number, including area code)
Not Applicable
(Former name or former address, if changed since last report)
Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the Registrant under any of the following provisions:
☐Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
☐Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
☐Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
☐Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))
Securities registered pursuant to Section 12(b) of the Act:
Title of each class
Trading
Symbol(s)
Name of each exchange
on which registered
Common Stock, $0.0001 par value per shareGWHThe New York Stock Exchange
Warrants, each whole warrant exercisable for one share of common stock at an exercise price of $11.50GWH.WThe New York Stock Exchange
Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§ 230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (§ 240.12b-2).
Emerging growth company ☒
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐



Item 2.02    Results of Operations and Financial Condition.
On August 14, 2024, ESS Tech, Inc. (the “Company”) issued a press release announcing financial results for the quarter ended June 30, 2024. A copy of the press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated herein by reference.
The information furnished in this Item 2.02 and Exhibit 99.1 of this Current Report on Form 8-K shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as expressly set forth by specific reference in such a filing.
Item 9.01    Financial Statements and Exhibits
(d) Exhibits
Exhibit
No.
 
99.1
104Cover page interactive data file


SIGNATURE
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, hereunto duly authorized.
Dated: August 14, 2024
ESS TECH, INC.
By:/s/ Anthony Rabb
Name:Anthony Rabb
Title:Chief Financial Officer


Exhibit 99.1
esslogoa.jpg
ESS Tech, Inc. Announces Second Quarter 2024 Financial Results
Finalizing Funding Agreement for up to $50 Million with Export-Import Bank of the United States
Began Production of Second Energy Center for Portland General Electric
Energy Warehouse Becomes First Operational Long-Duration Energy Storage at an Airport
Exited Q2 with Cash and Short-Term Investments over $74 Million; Expected to Carry ESS Well Into 2025

WILSONVILLE, Ore. – August 14, 2024 – ESS Tech, Inc. (“ESS,” “ESS, Inc.” or the “Company”) (NYSE: GWH), a leading manufacturer of long-duration energy storage systems (LDES) for commercial and utility-scale applications, today announced financial results for its second quarter ended June 30, 2024.
“ESS made significant headway in the business in the second quarter and we continue to be encouraged by the growing imperative for Long Duration Energy Storage to be coupled to renewables. Importantly, outside funding is expected to play an important role for not only our operational expansion, but also our partnership with Sacramento Municipal Utility District, or SMUD. First, we are close to finalizing an agreement for up to $50 million in funding from the Export-Import Bank of the United States to expand our manufacturing capacity and expect to add about $10 million to our balance sheet in the second half alone for previously installed capacity. Additionally, our long duration storage project with SMUD has been granted $10 million by the California Energy Commission to further our collaboration. Our progress with our projects across numerous customers in the second quarter also reflects the continued importance of our relationships. In Q2, our Energy Warehouses started charging ground power units at Schiphol airport in Amsterdam, were integrated into Burbank Water and Power’s EcoCampus and connected to a 265 kW solar array, and was selected by Indian Energy, the California Energy Commission and the Department of Defense for testing to deliver energy security to remote communities like tribal nations and military bases,” said Eric Dresselhuys, CEO of ESS. “Although revenue in the second quarter was lower than expected due to the timing of EW shipments due to delays at a key partner, we expect this to resolve itself in the coming weeks, allowing us to ship our products and recover revenue in the third quarter.”
“On the Energy Center front, we remain on schedule with Portland General Electric and continue to expect to ramp EC shipments in the back half of the year. With the first EC currently cycling, we began production of our second unit in July and expect these to be connected to the grid by late 2024. In parallel, we have positioned our operations to begin building the first ECs for commercial deliveries to Tampa Electric and SMUD later this month. Our plan to transition to volume manufacturing and shipments remains solidly on track and we continue to expect to achieve our goal of growing our revenue by three to four times in 2024.”
Recent Business Highlights
•An Energy Warehouse™ (EW) system at Schiphol Airport in Amsterdam, the second largest airport in mainland Europe, became the first iron flow battery to be operational at an airport. This EW will be used to help advance Schiphol Airport’s sustainability strategy and has now been tested on Schiphol’s AB platform. The EW system has begun to be used to recharge Electric Ground Power Units (E-GPU), which are intended to replace the diesel ground power units currently used to supply electrical power to aircraft when parked at airport gates.


•The California Energy Commission, or CEC, awarded a $10 million grant to a long-duration battery storage project in partnership with ESS and Sacramento Municipal Utility District, or SMUD. The CEC funding will be used to demonstrate a 3.6 MW, 8-hour iron flow battery project, with SMUD committing an additional $19.5 million to cover additional other costs for the LDES project.
•We are finalizing the details to close agreement with the Export-Import Bank of the United States, or EXIM, for up to $50 million in funding provided by the Make More in America Initiative. This funding is long-term, low interest, and non-dilutive capital to finance expanding manufacturing capacity, enabling ESS to immediately add to our cash position, borrowing about $10 million on a lookback basis for previously installed capacity. Later this year, the funding is planned to be used for the addition of our second manufacturing line, which is expected to triple our production capacity.
•Indian Energy, a Native American-owned microgrid developer and integrator, the CEC, and the Department of Defense together selected ESS’ iron flow batteries to demonstrate the diverse capabilities of LDES technologies for utility-scale, resilient microgrids and their ability to deliver energy security to remote communities like tribal nations and military bases. Over the coming months, our project partners are expecting to demonstrate optimal use cases in the California energy market, including solar peak shifting and grid ancillary services, after which we expect our EW to be placed into commercial operation.
•We began building our second EC in July, which we plan to deploy beside the first EC, both for Portland General Electric. We expect to start building and shipping our first commercial ECs in the second half of 2024 for delivery to Tampa Electric and the Sacramento Municipal Utility District, or SMUD.
•We filed our definitive proxy statement with the SEC on August 8, 2024 to execute a reverse split, following a listing notice from the NYSE received in March. We will hold our special shareholders meetings on August 23rd and, once having effected the split in late August, we expect to be in compliance with the listing requirements and will continue our operations as a publicly-listed company.
Conference Call Details
ESS will hold a conference call on Wednesday, August 14, 2024 at 5:00 p.m. EDT to discuss financial results for its second quarter 2024 ended June 30, 2024. Interested parties may join the conference call beginning at 5:00 p.m. EDT on Wednesday, August 14, 2024 via telephone by calling (833) 470-1428 in the U.S., or for international callers, by calling +1 (404) 975-4839 and entering conference ID 366142. A telephone replay will be available until August 21, 2024, by dialing (866) 813-9403 in the U.S., or for international callers, +1 (929) 458-6194 with conference ID 167636. A live webcast of the conference call will be available on ESS’ Investor Relations website at http://investors.essinc.com/.
A replay of the call will be available via the web at http://investors.essinc.com/.
About ESS, Inc.
At ESS (NYSE: GWH), our mission is to accelerate global decarbonization by providing safe, sustainable, long-duration energy storage that powers people, communities and businesses with clean, renewable energy anytime and anywhere it’s needed. As more renewable energy is added to the grid, long-duration energy storage is essential to providing the reliability and resiliency we need when the sun is not shining and the wind is not blowing.
Our technology uses earth-abundant iron, salt and water to deliver environmentally safe solutions capable of providing up to 12 hours of flexible energy capacity for commercial and utility-scale energy storage applications. Established in 2011, ESS, Inc. enables project developers, independent power producers, utilities and other large energy users to deploy reliable, sustainable long-duration energy storage solutions. For more information visit www.essinc.com.
Use of Non-GAAP Financial Measures


In this press release and the accompanying earnings call, the Company includes Non-GAAP Operating Expenses and Adjusted EBITDA, which are non-GAAP performance measures that the Company uses to supplement its results presented in accordance with U.S. GAAP. As required by the rules of the Securities and Exchange Commission (“SEC”), the Company has provided herein a reconciliation of the non-GAAP financial measures contained in this press release and the accompanying earnings call to the most directly comparable measures under GAAP. The Company’s management believes Non-GAAP Operating Expenses and Adjusted EBITDA are useful in evaluating its operating performance and are similar measures reported by publicly-listed U.S. companies, and regularly used by securities analysts, institutional investors, and other interested parties in analyzing operating performance and prospects. By providing these non-GAAP measures, the Company’s management intends to provide investors with a meaningful, consistent comparison of the Company’s profitability for the periods presented. Adjusted EBITDA is not intended to be a substitute for net income/loss or any U.S. GAAP financial measure and, as calculated, may not be comparable to other similarly titled measures of performance of other companies in other industries or within the same industry. Further, Non-GAAP Operating Expenses are not intended to be a substitute for GAAP Operating Expenses or any U.S. GAAP financial measure and, as calculated, may not be comparable to other similarly titled measures of performance of other companies in other industries or within the same industry.
The Company defines and calculates Non-GAAP Operating Expenses as GAAP Operating Expenses adjusted for stock-based compensation and other special items determined by management as they are not indicative of business operations. The Company defines and calculates Adjusted EBITDA as net loss before interest, other non-operating expense or income, (benefit) provision for income taxes, and depreciation and amortization, and further adjusted for stock-based compensation and other special items determined by management, including, but not limited to, fair value adjustments for certain financial liabilities associated with debt and equity transactions as they are not indicative of business operations.
Forward-Looking Statements
This communication contains certain forward-looking statements, including statements regarding ESS and its management team’s expectations, hopes, beliefs, intentions or strategies regarding the future. The words “anticipate”, “believe”, “continue”, “could”, “estimate”, “expect”, “intends”, “may”, “might”, “plan”, “possible”, “potential”, “predict”, “project”, “should”, “will” and “would” and similar expressions may identify forward-looking statements, but the absence of these words does not mean that a statement is not forward-looking. Examples of forward-looking statements include, among others, statements regarding the Company’s manufacturing plans, the Company’s order and sales pipeline, the Company’s ability to execute on orders, the Company’s ability to effectively manage costs, the Company’s partnerships with third parties such as Amsterdam Airport Schiphol, Burbank Water and Power, and the Sacramento Municipal Utility District and the finalization of the EXIM loan. These forward-looking statements are based on ESS’ current expectations and beliefs concerning future developments and their potential effects on ESS. Many factors could cause actual future events to differ materially from the forward-looking statements in this communication. There can be no assurance that the future developments affecting ESS will be those that we have anticipated. These forward-looking statements involve a number of risks, uncertainties (some of which are beyond ESS control) or other assumptions that may cause actual results or performance to be materially different from those expressed or implied by these forward-looking statements, which include, but are not limited to, continuing supply chain issues; delays, disruptions, or quality control problems in the Company’s manufacturing operations; the Company’s ability to hire, train and retain an adequate number of manufacturing employees; issues related to the shipment and installation of the Company’s products; issues related to customer acceptance of the Company’s products; issues related to the Company’s partnerships with third parties; inflationary pressures; risk of loss of government funding for customer projects; and the Company’s need to achieve significant business growth to achieve sustained, long-term profitability. Except as required by law, ESS is not undertaking any obligation to update or revise any forward-looking statements whether as a result of new information, future events or otherwise.
Contacts
Investors:
Erik Bylin
investors@essinc.com


Media:
Morgan Pitts
503.568.0755
Morgan.Pitts@essinc.com

Source: ESS Tech, Inc.



ESS Tech, Inc.
Condensed Statements of Operations and Comprehensive Loss
(unaudited)
(in thousands, except share and per share data)
 
Three Months Ended June 30,
Six Months Ended June 30,
 2024202320242023
Revenue:
Revenue$342 $2,826 $2,556 $3,197 
Revenue - related parties6 1 530 $2 
Total revenue348 2,827 3,086 $3,199 
Cost of revenue11,748 — 22,874 — 
Gross profit (loss)(11,400)2,827 (19,788)3,199 
Operating expenses:
Research and development2,836 19,450 6,382 37,181 
Sales and marketing2,711 1,739 4,745 3,592 
General and administrative6,178 5,845 11,704 11,132 
Total operating expenses11,725 27,034 22,831 51,905 
Loss from operations(23,125)(24,207)(42,619)(48,706)
Other income (expenses), net:
Interest income, net1,052 1,330 2,291 2,582 
Gain (loss) on revaluation of common stock warrant liabilities115 (115)115 573 
Other income (expense), net18 63 (37)721 
Total other income, net1,185 1,278 2,369 3,876 
Net loss and comprehensive loss to common stockholders$(21,940)$(22,929)$(40,250)$(44,830)
Net loss per share - basic and diluted$(0.12)$(0.15)$(0.23)$(0.29)
Weighted-average shares used in per share calculation - basic and diluted175,758,584 154,900,330 175,136,561 154,514,265 


ESS Tech, Inc.
Condensed Balance Sheets
(unaudited)
(in thousands, except share data)
 June 30, 2024 December 31, 2023
Assets 
Current assets: 
Cash and cash equivalents$36,744  $20,165 
Restricted cash, current906  1,373 
Accounts receivable, net981 1,990 
Short-term investments37,695 87,899 
Inventory4,425 3,366 
Prepaid expenses and other current assets3,908  3,305 
Total current assets84,659  118,098 
Property and equipment, net17,758  16,266 
Intangible assets, net4,790 4,923 
Operating lease right-of-use assets2,195 2,167 
Restricted cash, non-current946  945 
Other non-current assets785 833 
Total assets$111,133  $143,232 
Liabilities and stockholders' equity 
Current liabilities: 
Accounts payable$5,833  $2,755 
Accrued and other current liabilities9,669  10,755 
Accrued product warranties3,240 2,129 
Operating lease liabilities, current1,572 1,581 
Deferred revenue, current5,689 2,546 
Total current liabilities26,003  19,766 
Operating lease liabilities, non-current884 957 
Deferred revenue, non-current— 3,835 
Deferred revenue, non-current - related parties14,400 14,400 
Common stock warrant liabilities802 917 
Other non-current liabilities—  — 
Total liabilities42,089  39,875 
Stockholders' equity: 
Preferred stock ($0.0001 par value; 200,000,000 shares authorized, none issued and outstanding as of June 30, 2024 and December 31, 2023)
—  — 
Common stock ($0.0001 par value; 2,000,000,000 shares authorized, 176,822,039 and 174,211,911 shares issued and outstanding as of June 30, 2024 and December 31, 2023, respectively)
18  18 
Additional paid-in capital805,433  799,496 
Accumulated deficit(736,407) (696,157)
Total stockholders' equity69,044  103,357 
Total liabilities and stockholders' equity$111,133  $143,232 


ESS Tech, Inc.
Condensed Statements of Cash Flows
(unaudited)
(in thousands)
Six Months Ended June 30,
20242023
Cash flows from operating activities:
Net loss$(40,250)$(44,830)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization2,521 2,105 
Non-cash interest income(1,573)(1,487)
Non-cash lease expense658604 
Stock-based compensation expense5,880 4,784 
Inventory write-down and losses on noncancellable purchase commitments1,530 — 
Change in fair value of common stock warrant liabilities(115)(573)
Other non-cash (income) expenses, net25 (33)
Changes in operating assets and liabilities:
Accounts receivable, net1,526 4,653 
Inventory(2,875)— 
Prepaid expenses and other current assets(555)2,561 
Accounts payable1,925 (664)
Accrued and other current liabilities(1,962)(4,234)
Accrued product warranties1,111 3,460 
Deferred revenue(1,209)(3,189)
Operating lease liabilities(768)(689)
Net cash used in operating activities(34,131)(37,532)
Cash flows from investing activities:
Purchases of property and equipment(1,565)(3,440)
Maturities and purchases of short-term investments, net51,752 37,363 
Net cash provided by investing activities50,187 33,923 
Cash flows from financing activities:
Payments on notes payable— (800)
Proceeds from stock options exercised21 122 
Repurchase of shares from employees for income tax withholding purposes(178)(82)
Proceeds from contributions to Employee Stock Purchase Plan214 332 
Other, net— (14)
Net cash provided by (used in) financing activities57 (442)
Net change in cash, cash equivalents and restricted cash16,113 (4,051)
Cash, cash equivalents and restricted cash, beginning of period22,483 36,655 
Cash, cash equivalents and restricted cash, end of period$38,596 $32,604 




ESS Tech, Inc.
Condensed Statements of Cash Flows (continued)
(unaudited)
(in thousands)
Six Months Ended June 30,
20242023
Supplemental disclosures of cash flow information:
Cash paid for operating leases included in cash used in operating activities$874 $827 
Non-cash investing and financing transactions:
Purchase of property and equipment included in accounts payable and accrued and other current liabilities1,970 931 
Transfers between inventory and property and equipment, net1,051 — 
Cash and cash equivalents$36,744 $30,287 
Restricted cash, current906 1,373 
Restricted cash, non-current946 944 
Total cash, cash equivalents and restricted cash shown in the condensed statements of cash flows$38,596 $32,604 


ESS Tech, Inc.
Reconciliation of GAAP to Non-GAAP Operating Expenses
(unaudited)
(in thousands)

Three Months Ended June 30,Six Months Ended June 30,
2024202320242023
Research and development$2,836 $19,450 $6,382 $37,181 
Less: stock-based compensation(908)(1,130)(1,309)(2,123)
Non-GAAP research and development$1,928 $18,320 $5,073 $35,058 
Sales and marketing$2,711 1,739 $4,745 $3,592 
Less: stock-based compensation(163)(165)(258)(315)
Non-GAAP sales and marketing$2,548 $1,574 $4,487 $3,277 
General and administrative$6,178 $5,845 $11,704 $11,132 
Less: stock-based compensation(1,540)(1,430)(2,974)(2,346)
Non-GAAP general and administrative$4,638 $4,415 $8,730 $8,786 
Total operating expenses$11,725 $27,034 $22,831 $51,905 
Less: stock-based compensation(2,611)(2,725)(4,541)(4,784)
Non-GAAP total operating expenses$9,114 $24,309 $18,290 $47,121 


ESS Tech, Inc.
Reconciliation of GAAP Net Loss to Adjusted EBITDA
(unaudited)
(in thousands)

Three Months Ended June 30,Six Months Ended June 30,
2024202320242023
Net loss$(21,940)$(22,929)$(40,250)$(44,830)
Interest income, net(1,052)(1,330)(2,291)(2,582)
Stock-based compensation3,026 2,725 5,880 4,784 
Depreciation and amortization1,302 1,028 2,521 2,105 
Gain (loss) on revaluation of common stock warrant liabilities(115)115 (115)(573)
Other income (expense), net(18)(63)37 (721)
Adjusted EBITDA$(18,797)$(20,454)$(34,218)$(41,817)


v3.24.2.u1
Cover
Aug. 14, 2024
Entity Information [Line Items]  
Document Type 8-K
Document Period End Date Aug. 14, 2024
Entity Registrant Name ESS TECH, INC.
Entity Incorporation, State or Country Code DE
Entity File Number 001-39525
Entity Tax Identification Number 98-1550150
Entity Address, Address Line One 26440 SW Parkway Ave.
Entity Address, Address Line Two Bldg. 83
Entity Address, City or Town Wilsonville
Entity Address, State or Province OR
Entity Address, Postal Zip Code 97070
City Area Code 855
Local Phone Number 423-9920
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Entity Emerging Growth Company true
Entity Ex Transition Period false
Entity Central Index Key 0001819438
Amendment Flag false
Common Stock 0.0001 Par Value Per Share  
Entity Information [Line Items]  
Title of 12(b) Security Common Stock, $0.0001 par value per share
Trading Symbol GWH
Security Exchange Name NYSE
Warrants Each Whole Warrant Exercisable For One Share Of Common Stock At An Exercise Price Of 11.50  
Entity Information [Line Items]  
Title of 12(b) Security Warrants, each whole warrant exercisable for one share of common stock at an exercise price of $11.50
Trading Symbol GWH.W
Security Exchange Name NYSE
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