Financial Data and Key Metrics Changes - Revenue for the full year 2025 was $1.6 million, down from $6.3 million in 2024, reflecting a transition away from legacy product lines [16] - Gross loss for the year was $27.7 million, an improvement of 39% compared to a loss of $45.4 million in 2024 [17] - Total operating expenses decreased 33% year-over-year to $29.7 million, down from $44.4 million [17] - Net loss for the full year was $63.4 million compared to $86.2 million in 2024, an improvement of 26% [18] - Adjusted EBITDA improved 38% year-over-year, reflecting significant cost reductions across the business [22] Business Line Data and Key Metrics Changes - The company is refocusing on the Energy Base product, leading to a decline in revenue from legacy units [16] - Deliveries of legacy units primarily to related parties and engineering services contributed to the revenue recognized during the year [17] Market Data and Key Metrics Changes - Demand from AI data centers is projected to increase 165% by 2030, indicating a growing market for long-duration energy storage [14] - The grid will need to deploy 8 TWh of long-duration storage by 2040 to meet clean energy targets, highlighting the market opportunity [14] Company Strategy and Development Direction - The company aims to commercialize the Energy Base product in 2026, with significant revenue expected in 2027 and 2028 from tier one customers [30] - The acquisition of VoltStorage enhances the company's technological capabilities and strengthens its intellectual property portfolio [11] - The company is exploring different financial structures for the Salt River Project, which includes a 10-year PPA agreement [32] Management's Comments on Operating Environment and Future Outlook - Management expressed confidence in the commercial momentum, citing signed agreements with significant counterparties [26] - The financial performance is improving across key metrics, with structural cost reductions being a focus [27] - The company is strategically planning future capital raises, indicating a thoughtful approach to financial management [40] Other Important Information - The company has made leadership changes, including the appointment of a permanent CFO and a new Chief Commercial Officer [11] - As of December 31, 2025, the company had $14.5 million in unrestricted cash and cash equivalents, indicating a solid liquidity position [23] Q&A Session Summary Question: Outlook for revenue ramp-up associated with key projects - The focus for 2026 will be on commercializing the Energy Base, with significant revenue expected in 2027 and 2028 [30] Question: Ownership structure for the Salt River Project - The company is still in the planning phase regarding ownership and expects to start recognizing revenues in 2028 [32] Question: Potential for follow-on deployments after the pilot project - There is potential for a follow-on project with SRP, with operational data expected by mid-2028 [34] Question: Plans for repaying the second tranche of promissory notes and future capital raises - The financial runway has improved, and the company is being strategic about future capital raises [39]

Financial Data and Key Metrics Changes - Revenue for the full year 2025 was $1.6 million, down from $6.3 million in 2024, reflecting a transition away from legacy product lines [10][11] - Gross loss for the year was $27.7 million, an improvement of 39% compared to a loss of $45.4 million in 2024 [11] - Total operating expenses decreased 33% year-over-year to $29.7 million, down from $44.4 million [11] - Net loss for the full year was $63.4 million compared to $86.2 million in 2024, an improvement of 26% [11] - Adjusted EBITDA improved 38% year-over-year to a loss of $44.3 million, from a loss of $71.3 million in 2024 [12][14] Business Line Data and Key Metrics Changes - The company is refocusing on the Energy Base product, which is expected to drive future revenue growth [10][19] - Legacy product lines, including Energy Warehouse and Energy Center, are being phased out, impacting revenue recognition [10] Market Data and Key Metrics Changes - Demand from AI data centers is projected to increase 165% by 2030, indicating a significant market opportunity for long-duration energy storage [9] - The grid will need to deploy 8 terawatt hours of long-duration storage by 2040 to meet clean energy targets [9] Company Strategy and Development Direction - ESS is focused on commercializing the Energy Base product for tier one customers, with significant revenue potential expected in 2027 and 2028 [19] - The company has made strategic leadership changes and acquired VoltStorage to enhance its technological capabilities and patent coverage [6][7] - The company aims to strengthen its balance sheet and manage expenses to support strategic priorities [15][26] Management's Comments on Operating Environment and Future Outlook - Management expressed confidence in the commercial momentum, citing signed agreements with major customers like Google and the US Air Force [16] - The organizational reset undertaken in 2025 is showing positive results in financial performance, with structural cost reductions [16][14] - The company is taking a pragmatic approach to ensure high-quality product delivery for the Energy Base [19] Other Important Information - The company closed a $40 million financing transaction and launched an ATM equity offering program, raising approximately $8.6 million [8][15] - As of December 31, 2025, the company had $14.5 million in unrestricted cash and cash equivalents, and $7.5 million in other liquid assets [14] Q&A Session Summary Question: Outlook for revenue ramp-up associated with key projects - Management indicated that focus for 2026 will be on commercializing the Energy Base, with significant revenue expected in 2027 and 2028 [19] Question: Ownership structure of the Salt River Project - Management is still in the planning phase regarding ownership and expects to start recognizing revenues in 2028 [20][21] Question: Potential for follow-on deployments after the pilot project - There is potential for follow-on projects with SRP, with operational data expected by mid-2028 [22][23] Question: Plans for capital raise and balance sheet strategy - Management stated that the financial runway has improved and they are being strategic about future capital raises [26][27]

Product & Strategy - ESS launched the Energy Base, a new product configuration scalable from 5 MW to 100+ MW with a duration of 10+ to 22 hours, utilizing the Iron Core technology[14,32] - The Energy Base is designed to be more capital efficient for both ESS and its customers, shifting manufacturing mix to higher margin components and lowering working capital burden[32,47] - ESS partners with Honeywell to optimize Energy Base design for quality, cost-efficiency, and scale, exploring product collaboration and procurement leverage[30] - ESS's product line is evolving to meet a broader range of use cases at larger scales, with the same core technology across all products[31] Market & Opportunities - Data centers' electricity demand is estimated to grow to 800 TWh by 2026, putting extreme pressure on aging infrastructure and increasing the risk of failure[37] - Power disruption accounts for 54% of impactful data center outages, highlighting the need for resilient power solutions[40] - ESS Energy Base enables fast deployment of additional grid capacity and increases grid balancing and resilience for data center customers[38] Financial Performance - Q1 2025 revenue was $0.6 million, a 78% decrease compared to $2.7 million in Q1 2024[53] - Q1 2025 net loss was $18.0 million, a 2% improvement compared to $18.3 million in Q1 2024[53] - Adjusted EBITDA for Q1 2025 was a loss of $15.0 million, a 3% improvement compared to a loss of $15.4 million in Q1 2024[53]

Financial Data and Key Metrics Changes - For the fiscal year 2024, the company reported revenue of $6.3 million, which was below the guidance range of $9 to $11 million, primarily due to a partner's inability to secure funding for orders [11][46] - The cost of revenue for the full year was $51.7 million, reflecting challenges in achieving expected revenue guidance [46] - The company achieved a nearly 60% reduction in its NOV adjustment per unit year-over-year, indicating progress in cost management [48] Business Line Data and Key Metrics Changes - The company delivered six Energy Center (EC) systems to a Florida utility customer in December 2024, contributing significantly to revenue [14][44] - The Energy Center design achieved breakeven on a non-GAAP gross margin basis by the end of Q4 2024, hitting the target almost a year earlier than expected [19][50] - The company reported a 35% reduction in costs for the Energy Warehouse (EW) and a 26% reduction for the EC [52] Market Data and Key Metrics Changes - The demand for electricity in the U.S. is expected to grow by 35% to 50% between 2024 and 2040, driven by economic growth and the electrification of transport and heating [33] - The company is actively bidding on projects with the new energy base product, which is designed to meet increasing energy demands [34] Company Strategy and Development Direction - The company plans to accelerate its strategic shift towards the Energy Center product deployment and the new energy base product in 2025 [13][20] - The energy base product is designed to be modular and scalable, allowing for greater flexibility in manufacturing and deployment [25][32] - The company aims to leverage partnerships, such as with Honeywell, to enhance manufacturing capabilities and reduce costs [24][98] Management's Comments on Operating Environment and Future Outlook - Management acknowledged challenges in the current operating environment, including capital raising and geopolitical uncertainties [5][37] - The company is focused on extending its cash runway through securing new capital and efficient management of expenses [66] - Management expressed optimism about the long-term potential of the energy storage market and the company's positioning within it [67] Other Important Information - The company is in the process of raising capital to bolster its balance sheet and support growth objectives [37][63] - The company received notice of falling below the NYSE market cap requirement of $50 million and is taking action to remedy this situation [40][41] Q&A Session Summary Question: Revenue growth trajectory and 2025 expectations - Management indicated that they will not provide guidance for 2025 but expect moderate revenue growth in the first half of the year, with a scale-up in the second half [73] Question: Trends in gross margins for 2025 - Management stated that they do not anticipate being U.S. GAAP gross margin positive in 2025 but expect to achieve that post-2025 [77] Question: Capital raising needs and Export-Import Bank financing - Management is looking to raise at least $50 million to access the full amount of the Export-Import Bank loan and anticipates drawing on it in the second quarter [79] Question: Performance metrics of products in the field - Management acknowledged operational issues with new technology deployments but highlighted improvements in software and documentation to enhance user experience [84][86] Question: Future operating expenses - Management indicated that operating expenses are expected to be slightly lower than the previous year, with a focus on reallocating resources to key initiatives [90][92] Question: Energy base product and manufacturing partners - Management clarified that the energy base product will involve manufacturing core components while potentially leveraging external partners for balance of system components [96][98]