Dive Brief:
- A new partnership between Guadalupe Valley Electric Cooperative (GVEC) and Base Power will bring 50 MW of battery capacity to South Texas. The companies announced this expansion last week.
- This follows a successful 2-MW pilot project that showed how distributed batteries can improve system flexibility, according to Darren Schauer, GVEC’s General Manager and CEO.
- Tim Pianta, from Base Power, noted that the industry is shifting toward quick-deploy resources, which are vital for reliability in Texas and beyond.
Dive Insight:
GVEC plans to have 20 MW of distributed battery capacity by the end of 2026, aiming to add an additional 15 to 20 MW annually with Base Power’s help. Schauer mentioned that GVEC actively participates in the Electric Reliability Council of Texas (ERCOT) wholesale power market, which is not common for distribution cooperatives.
By securing 50 MW from Base Power, GVEC can match other wholesale power providers, with typical purchases ranging from 50 to 100 MW increments, Schauer explained.
Serving around 100,000 customer meters across a vast area east of San Antonio, GVEC experiences peak demand of 500 to 600 MW in the summer and up to 800 MW in winter due to heating needs.
Demand spikes during cold snaps and summer heat can lead to high wholesale power prices in ERCOT’s market. For instance, prices surged during the February 2021 winter storm.
Currently, Texas is expected to reach significant grid-scale battery capacity, with projections showing 13.9 GW by the end of 2025. Improved battery systems have helped stabilize energy prices, decreasing revenue fluctuations for utilities.
As population and industrial demands rise, GVEC anticipates continued price volatility in the coming years, suggesting that their battery program will help manage overall costs.
Base Power is offering significant discounts for GVEC members on the upfront costs of batteries, alongside waiving membership fees. This collaboration encourages homeowners to participate by providing backup power during outages, with batteries that can offer around 12 hours of electricity supply.
Base Power’s battery modules are larger than many alternatives, thereby enhancing operational flexibility in energy trading markets, which helps lower costs for customers.
Through their partnership, batteries will join ERCOT’s Aggregated Distributed Energy Resource pilot program, allowing for participation in market revenue streams. The hope is to utilize distribution-connected battery systems to find additional transmission cost savings.
Schauer emphasized the importance of distributed energy resources in the industry, stating that the greater presence of such technologies will benefit everyone.