Heliogen, Inc.

Heliogen reported total revenue of negative $1.2 million for Q4 2023, driven by an unfavorable $3.4 million cumulative adjustment related to the revised Capella cost estimate. Contracted backlog was $76 million across 7 MW and four projects, including almost $63 million of contracted revenue remaining on Capella and a new $1.6 million Woodside engineering services agreement for Brenda. During 2023, the company spent $17.5 million on project development and collected $15.5 million in cash, primarily from Woodside and the U.S. Department of Energy. Guidance-wise, management said the West Texas project is still expected to be complete by year-end 2024, and liquidity is expected to last into March 2025.

Christie Obiaya framed 2023 as a year of tangible progress toward three priorities: closing sales, installing the first commercial-scale project, and extending liquidity. She emphasized that the Mexico JDA, Sandia software validation, and Capella milestones position Heliogen to move toward a more commercial offering, while also noting the company is reviewing strategic alternatives with a financial adviser. Her tone was constructive but disciplined, repeatedly stressing cost prudence, outside funding, and a focus on actions that directly advance commercialization.

The CFO update highlighted backlog of $76 million, with almost $63 million still tied to Capella and a $1.6 million Brenda engineering services agreement added in the quarter. On the income statement, the main financial issue was the Capella estimate revision, which caused a $3.4 million unfavorable cumulative revenue adjustment and led to negative $1.2 million of Q4 revenue. Management also said adjusted SG&A run rate fell 12% from Q3 to Q4 2023 and headcount was reduced by over 40% from the peak in Q4 2022. On cash, Heliogen said it spent $17.5 million on project development in 2023 and collected $15.5 million, and it believes current plans provide liquidity into March 2025.

Analysts focused on what drove the Capella cost overrun, whether it affected other projects, and how Capella proceeds from here. Management said the higher estimate was tied to first-of-a-kind issues in Capella’s particle receiver, heat exchanger, and power block, and that the problem does not carry over to the broader pipeline. On Capella, Obiaya said the company is pursuing value engineering and additional funding sources such as state tax exemptions and other clean-energy funding, with some soft commitments already in hand. Questions also covered software licensing and government funding; management said the Sandia-validated software could open brownfield and greenfield licensing opportunities across an installed CSP base of over 8 GW, and that Heliogen is pursuing federal and state support, including areas like calcination where it already has a $4 million DOE grant.