Enphase Energy Expands Grid Services Support
Enphase Energy has announced its increased support for grid services programs—also known as virtual power plants—in Puerto Rico, Nova Scotia, and Colorado. This update was shared by the solar and battery company on February 6.
In Colorado, nearly 1,000 customers are enrolled in Xcel Energy’s Renewable Battery Connect program, with a total capacity of around 10 MW. Xcel’s spokesperson mentioned that there’s an additional 13 MW of distributed battery capacity in the state’s interconnection queue.
Xcel is seeking the Colorado Public Utilities Commission’s approval for up to 125 MW of virtual power plant capacity. This move is meant to better manage the growth in electrification, enhance grid operations, and improve reliability.
Renewable Battery Connect Program
The Renewable Battery Connect program provides incentives for solar-charged batteries that are enrolled. Participants can receive an upfront incentive of $350 per kW, up to a maximum of $5,000 per site, along with a $100 annual performance incentive over five years. Xcel manages these batteries during peak demand periods up to 60 times a year.
The incentives available in Colorado are notably higher than those offered in Puerto Rico and Nova Scotia. For instance, customers in Colorado who enroll three Enphase IQ Battery 5Ps could earn around $4,032 upfront, compared to $500 in Nova Scotia and no upfront incentive in Puerto Rico.
The incentives in Nova Scotia and Puerto Rico do provide annual performance incentives, but they are less than what is available in Colorado.
Future of Battery Incentives
The ample incentive structure in Colorado may boost the adoption of battery systems across the state. According to Michael Norbeck, head of grid services at Enphase Energy, this surge in incentives could change the landscape in how utilities approach battery programs, as they sometimes find themselves in a cost-effectiveness loop that isn’t beneficial for market growth.
Meanwhile, Xcel is working under a statutory deadline to implement a performance-based virtual power plant program in Colorado. The company has expressed concerns about meeting its target of rolling out a 50-MW pilot by October 2024.
Norbeck noted that participation in the Renewable Battery Connect might help Xcel become more familiar with the technology and its applications.
Additionally, Xcel offers a $175/kW upfront incentive for battery attachments in Minnesota and plans to introduce a performance-based battery demand response program for Minnesota customers in the second quarter of 2025.
The aim of the Renewable Battery Connect program is primarily to manage peak load, but as it develops, it may evolve to encompass more complex functionalities.
Some existing virtual power plants in the U.S. already provide a broader range of grid services. For example, Rocky Mountain Power’s Wattsmart battery program includes voltage regulation along with load shaping.
As customer participation grows, distributed energy resources will play an increasingly vital role in meeting future electric demands, according to Xcel’s spokesperson.