- Pexapark’s latest Q3 ERCOT Market Update report shows that the energy arbitrage value of BESS over the next 10 years has gained as much as 19% year-over-year, despite recent underperformance.
Houston, Texas, 18 November 2025 – Battery storage assets continue to see rising forward value levels and emerging offtake opportunities even as solar and wind PPAs face an increasingly widening bid-offer spread, according to a new report from Pexapark, the price intelligence platform for clean energy.
The energy arbitrage opportunity of Battery Energy Storage Systems (BESS) over the next ten years advanced by double digits in three out of four ERCOT hubs compared to the same quarter last year. Following several years of BESS underperformance, this finding points to an increasingly bullish view of BESS over the long-term as load growth and renewables penetration continue to widen intraday spreads.
At the same time, BESS Toll offers – the prices at which developers are willing to sell the revenue potential of their assets – stayed mostly flat or declined. This convergence – rising value levels combined with competitive, stable offer pricing – points to a potentially growing opportunity in BESS dealmaking.
Yaniv Yaffe, Pexapark Product Manager, said: “Expected load growth coupled with high levels of solar penetration mean that intraday spreads in ERCOT will, in general, get wider, with consistent midday dips and increasingly prominent shoulder hour spikes. This dynamic strengthens the long-term economic rationale for BESS even if recent summers saw decreased levels of price volatility.”
Solar and wind PPAs, in contrast, have experienced a more difficult market environment since the passage of the One Big Beautiful Bill (OBBBA). While a 7% rise in the forward market drove the fair value of wind and solar PPAs higher in Q3, offer prices for such contracts rose even more: 12% for wind PPAs and 13% for solar PPAs. The result is an increasingly illiquid PPA market. Indeed, in Q3 only three ERCOT PPAs were publicly announced, representing fewer than half the number of deals signed in the same quarter last year.
The higher offer prices for wind and solar PPAs reflect an increasingly hostile regulatory environment. The OBBBA is phasing out billions in clean energy tax credits by mid-2026 while imposing strict sourcing restrictions on Chinese components. Although safe harbor provisions were preserved, the narrow compliance windows are straining developers and pushing up project costs.
“The ERCOT market is facing temporary but acute policy-driven shocks that have created a pricing gap between project costs and buyers’ willingness to pay. For wind and solar, the price gap is now significant and is contributing to the shift in focus toward BESS,” said Luca Pedretti, COO & co-Founder of Pexapark.
The report is available to Pexapark ERCOT subscribers. To learn more about Pexapark’s offering in the US, schedule a demo here.
Contact:
Jeremy Zelinger
Marketing Director, US
Jeremy.zelinger@pexapark.com
About Pexapark
Pexapark is the price intelligence platform for clean energy. Covering solar, wind, and battery storage across more than 20 countries, Pexapark helps clean energy buyers, sellers, and investors navigate increasingly complex power markets with confidence. To do this, the company combines market-based insights and pricing solutions with expert-led transaction facilitation.
Unlike fundamental assumptions or infrequent RFPs, Pexapark is powered by real market data sourced on an ongoing basis from more than a hundred counterparties.
This enables Pexapark to provide a market consensus view on otherwise non-transparent contracts. As a result, both new entrants and experienced players trust Pexapark to connect the dots across every stage of clean energy commercialization – from pre-transaction analysis, to price negotiation, to post-transaction performance and exposure management.
Founded in 2017 by power traders, Pexapark has facilitated over 40,000 megawatts of transactions and currently serves more than 250 customers across Europe and the US.
For more information, contact hello@pexapark.com or visit www.pexapark.com