A year after gaining traction, virtual power plants are now central to US utilities’ strategies to manage record demand, extreme weather, and decarbonisation, turning residential batteries into key grid assets.
A year on, the argument for home batteries as grid infrastructure is looking stronger, not weaker. What was once framed mainly as a household resilience tool is increasingly being treated by utilities and policymakers as a practical resource for managing record demand, volatile weather and the growing strain on ageing networks.
Extreme heat, hurricanes and wildfires are pushing the US power system harder each year, and the response is no longer confined to building more centralised generation and wires. According to Pew Research, virtual power plants are emerging as a way to combine rooftop solar, stationary storage, smart thermostats and electric vehicles into a coordinated resource that can be dispatched when the system is under pressure. For industrial decarbonisation professionals, the significance is clear: flexibility is becoming as valuable as supply.
That shift is already moving beyond theory. Sunrun said in May that its CalReady programme in California had expanded to roughly 75,000 home batteries from more than 56,000 customers, with the network able to provide up to 375 megawatts of backup power during peak periods such as heatwaves. In effect, thousands of small systems are being aggregated into a single, controllable asset that can support the grid while also helping householders cut costs.
The appeal for utilities is straightforward. Instead of relying solely on expensive network upgrades, distributed batteries can shave demand at precisely the moments when the system is most exposed. They can also absorb excess renewable generation that might otherwise be curtailed, reducing the need for fossil-fired peaking plant. That makes virtual power plants attractive not only as an emergency measure, but as part of a broader decarbonisation strategy.
Research published in ScienceDirect adds another layer to the case. Its model of a residential virtual power plant, combining rooftop photovoltaics, stationary batteries and EVs, argues that coordinated flexibility can improve resilience both in normal operation and during extreme weather. The paper’s use of a modified IEEE distribution network with nearly 1,000 homes underlines how quickly these ideas are moving from concept to system planning.
The commercial proposition is also maturing. Some market analyses suggest households can earn meaningful annual payments for allowing their batteries to support the grid, while comparison platforms now map VPP programmes across multiple US states. That points to a market that is becoming easier to navigate, even if access still depends heavily on utility partnerships and local regulation.
What has changed most over the past year is not the technology itself, but the seriousness with which it is now being treated. Virtual power plants are no longer just an elegant idea for the future. They are becoming part of how grid operators manage today’s peaks, today’s outages and today’s emissions challenge.
- https://electrek.co/2026/07/05/hurricanes-heat-domes-and-holding-up-the-grid-with-home-batteries/ – Please view link – unable to able to access data
- https://www.pew.org/en/research-and-analysis/articles/2025/12/22/virtual-power-plants-powering-the-grid-from-your-neighborhood – This article discusses the increasing pressure on the U.S. electric grid due to rising energy demand and extreme weather events. It introduces Virtual Power Plants (VPPs) as a solution, explaining how aggregating distributed energy resources like solar panels, battery storage, and smart thermostats can provide reliable and affordable power on demand. The piece highlights the benefits of VPPs, including grid stability and cost savings, and outlines the steps needed to scale these systems, such as expanding DER adoption and integrating VPPs into utility planning.
- https://www.globenewswire.com/news-release/2025/05/01/3072295/0/en/index.html – Sunrun, a leading clean energy provider, announced the expansion of its CalReady power plant, which now includes approximately 75,000 home batteries from over 56,000 customers. This virtual power plant aims to support California’s grid during peak demand periods, such as heatwaves, by providing up to 375 megawatts of backup power. The initiative not only enhances grid reliability but also offers financial benefits to homeowners by lowering energy costs and reducing reliance on fossil fuels.
- https://www.sciencedirect.com/science/article/pii/S2352152X26019791 – This research paper proposes a framework for a residential Virtual Power Plant (VPP) that aggregates electric vehicles (EVs) and home batteries to enhance grid resilience during both normal and extreme weather conditions. The study introduces a multi-objective optimization function tailored to adapt to various scenarios and presents a modified IEEE 33-bus system model incorporating 992 houses equipped with rooftop photovoltaic systems, stationary batteries, and EVs. The paper also offers new resilience metrics to assess the distribution system’s performance under extreme weather events.
- https://www.nuwattenergy.com/en/virtual-power-plants-2026 – NuWatt Energy provides an in-depth look at Virtual Power Plants (VPPs) in 2026, explaining how homeowners can earn between $500 and $1,500 annually by allowing their home batteries to support the grid during peak demand periods. The article details the mechanics of VPPs, including the aggregation and coordination of distributed energy resources like home batteries, solar inverters, and smart thermostats to function as a single dispatchable power source. It also discusses the benefits for both homeowners and utilities, such as cost savings and grid stability.
- https://www.vppcompare.com/ – VPPCompare is a platform that allows users to compare Virtual Power Plant (VPP) programs across 11 states in the USA. The website provides information on various VPP programs, including details about participating utilities, battery brands, and potential earnings for homeowners. Users can enter their zip code and battery capacity to see compatible programs in their area and estimate their annual VPP revenue. The platform aims to help homeowners understand and participate in VPP programs to support grid reliability and earn compensation.
- https://www.pv-magazine-usa.com/2026/06/27/the-virtual-power-plant-era-has-arrived/ – This article discusses the mainstream adoption of Virtual Power Plants (VPPs) as a response to increasing electricity demand and infrastructure challenges in the U.S. power markets and grid design. It explains how decentralized capacity, such as home batteries and smart thermostats, is being aggregated to function as a single power plant, providing grid services and balancing supply and demand. The piece highlights the rapid scaling of VPPs and their role in transforming the energy grid to be more resilient and efficient.
Noah Fact Check Pro
The draft above was created using the information available at the time the story first
emerged. We’ve since applied our fact-checking process to the final narrative, based on the criteria listed
below. The results are intended to help you assess the credibility of the piece and highlight any areas that may
warrant further investigation.
Freshness check
Score:
7
Notes:
The article discusses the increasing role of home batteries in grid support during extreme weather events. While the concept of virtual power plants (VPPs) has been emerging over the past year, the specific data and developments mentioned, such as Sunrun’s CalReady program expansion to 75,000 home batteries, are recent and not widely reported elsewhere. However, similar themes have been covered in other recent articles, indicating that the narrative is not entirely original. For instance, TechSpot reported on the record installation of home batteries in the first quarter of 2026 ([techspot.com](https://www.techspot.com/news/112989-us-homeowners-installed-record-amount-battery-storage-year.html?utm_source=openai)), and Ars Technica highlighted the rise in home battery installations due to increasing electricity costs ([arstechnica.com](https://arstechnica.com/science/2026/07/us-home-battery-installations-hit-record-high-in-early-2026/?utm_source=openai)). This suggests that while the article provides specific updates, the broader topic has been covered recently.
Quotes check
Score:
6
Notes:
The article includes direct quotes from Sunrun’s CalReady program, such as “Sunrun said in May that its CalReady programme in California had expanded to roughly 75,000 home batteries from more than 56,000 customers, with the network able to provide up to 375 megawatts of backup power during peak periods such as heatwaves.” These figures align with information available on Sunrun’s official website ([sunrun.com](https://www.sunrun.com/calready?utm_source=openai)). However, the article does not provide direct links to these sources, making independent verification challenging. Additionally, the article does not attribute the quotes to specific individuals or official statements, which raises concerns about the authenticity and accuracy of the information.
Source reliability
Score:
5
Notes:
The article originates from Electrek, a publication known for covering electric vehicles and clean energy topics. While Electrek is reputable within its niche, it is not a major news organisation like the BBC or Reuters. The article references Sunrun’s CalReady program and other developments in the home battery sector. However, the lack of direct links to primary sources and the absence of specific attributions to individuals or official statements raise concerns about the reliability and independence of the information presented.
Plausibility check
Score:
7
Notes:
The article discusses the increasing role of home batteries in supporting the grid during extreme weather events, citing specific examples like Sunrun’s CalReady program expansion. These developments are plausible and align with recent trends in the energy sector, where distributed energy resources are being integrated into grid management strategies. However, the article does not provide direct links to primary sources or official statements, making independent verification challenging. Additionally, the lack of specific attributions to individuals or organisations raises concerns about the accuracy and authenticity of the information presented.
Overall assessment
Verdict (FAIL, OPEN, PASS): FAIL
Confidence (LOW, MEDIUM, HIGH): MEDIUM
Summary:
The article discusses the increasing role of home batteries in supporting the grid during extreme weather events, citing specific examples like Sunrun’s CalReady program expansion. While the content is plausible and aligns with recent trends in the energy sector, the lack of direct links to primary sources and the absence of specific attributions to individuals or official statements raise concerns about the reliability and independence of the information presented. The article does not provide direct links to these sources, making independent verification challenging. Additionally, the article does not attribute the quotes to specific individuals or official statements, which raises concerns about the authenticity and accuracy of the information.
