VPP Week-In-Review — Week of May 25, 2026
Your weekly brief on virtual power plants in the US & Canada. This week was light on news, and so I included some items I had missed in the last two weeks.
Three Takeaways
Background VPPs represent the clearest near-term path to residential scale: EnergyHub, ecobee, and Renew Home are converging on a model that captures capacity from users who gave access to optimize their thermostat load. Renew Home and ecobee estimate 6.8 GW available from existing opt-in customers — roughly 18% growth on top of WoodMac’s 37.5 GW 2025 baseline.
Record Q1 battery storage deployments — 9.7 GWh, up 32% YoY — confirm the physical resource base VPPs depend on is scaling with 1.1 GWh being the meter between commercial and residential sites.
Shatterdome’s quant-trading founding thesis — autonomously dispatching aggregated DERs into ancillary markets — is a differentiated bet on ancillary services volatility over raw MW competition, and it’s consistent with where margin is actually available in deregulated markets today.
News Roundup
Research & Reports · 🟢 Bullish
US Installed Record 9.7 GWh of Battery Storage in Q1 2026, Up 32% YoY: SEIA 📅 Published: May 21, 2026
SEIA and Benchmark Mineral Intelligence’s Q2 Energy Storage Market Outlook reported 9.7 GWh installs in Q1 — with California (60.6 GWh cumulative), Texas (29.2 GWh), and Arizona (20.2 GWh) leading. This was across 7.8 GWh utility-scale, 648 MWh C&I, and 515 MWh residential capacity. Notably larger battery installs are being added to Data centers including 200 MW/1.6 GWh project with Meta in Wyoming.
Product Announcements · 🟢 Bullish
Shatterdome Energy Emerges From Stealth With $3.5M Pre-Seed for AI VPP Trading Platform 📅 Published: May 21, 2026
Crucible Capital led the round for Shatterdome, founded by quant trader Amann Shariff, which aggregates renewables, batteries, and flexible industrial demand into an autonomously dispatched VPP network initially focused on ancillary services markets. The company claims 200 MWh traded in its first three months with 1.5 GW in pipeline across North American and European deregulated markets — early-stage numbers, but the quant-trading founding thesis is a differentiated entry point in a crowded space.
Product Announcements · 🟢 Bullish
ConnectM Reports Q1 2026 Results: Keen Labs Activates VPP Kit Supply Business 📅 Published: May 28, 2026
Keen Labs, ConnectM’s subsidiary, generated $1.9M in product revenue in its first full quarter supplying bundled solar, storage, and balance-of-system gear under “VPP kit” arrangements to installation partners including Greentech Renewables and Sun Solar LLC. It’s a small-cap signal that VPP-aligned hardware bundling is being productized as a distinct B2B revenue line — not just a pilot model.
Product Announcements · 🟢 Bullish
EnergyHub Launches Background VPP to Unlock Capacity from Non-Enrolled Thermostat Customers 📅 Published: May 27 2026
EnergyHub’s Background VPP taps the automated energy-saving features already running on smart thermostats for customers who haven’t enrolled in a DR program. The company says integrating this latent capacity can potentially double a utility’s available MW with little to no customer impact.
Grid Reliability · 🟡 Neutral
California Energy Leaders Issue Summer 2026 Grid Reliability Outlook 📅 Published: May 2026
CEC, CPUC, and CAISO’s Summer Energy Reliability Workshop cited adding >6,000 MW of nameplate capacity added in each of the past two years, keeping Diablo Canyon open and 17 GW of battery storage capacity all creating healthy reserve margins. This provides context for the ongoing fight over zeroing out the DSGS budget after 2026.
Utility Programs · 🟢 Bullish
Tesla Launches VIBES 2.0 VPP Program in US Virgin Islands With Powerwall Owners 📅 Published: May 15, 2026 (outside strict coverage window; flagged for author review)
Tesla and the Virgin Islands Energy Office expanded the VIBES pilot into a territory-wide residential VPP, offering Powerwall owners incentives for grid stabilization on an islanded grid. It’s Tesla’s first territory-scale VPP deployment outside the continental US — the islanded grid use case stress-tests aggregation logic that continental RTOs don’t require.
📊 By the Numbers
9.7 GWh — US battery storage installed in Q1 2026, a new quarterly record (+32% YoY)
$3.5M — Pre-seed raise for Shatterdome Energy’s AI-native VPP trading platform
~9 GW — Revised PJM backstop reliability auction target (down from 14.9 GW), per Jefferies
2.6M — Devices informing EnergyHub’s Dynamic Load Shaping optimization engine
💬 My Take
Two items stand out from this week’s news:
Background VPPs a key growth driver for thermostat VPP capacity.
Shatterdome could help unlock energy trading for more VPP capacity participating in ancillary services markets.
I see Background VPPs as one of the key drivers of 1-2 year growth for residential thermostat participation in VPPs. Energyhub’s product update builds on ecobee’s grid resiliency platform and Renew Home’s Energy Shift Capacity to enable utility and wholesale market participation of customers who opt-in to thermostat optimization. Renew Home estimates this can unlock up to 4 GW of capacity. Ecobee’s grid resilience portfolio shifted 108 MWs in CAISO, ERCOT and SPP in 2025 and estimates up to 2.8 GW of available capacity.
In context 6.8 GW of potential capacity represents 18% growth for the entire VPP market from WoodMac’s estimated 37.5 GWs from 2025. Berg Insights estimated 13.9 GWs of residential only VPPs capacity across North America in 2025; background thermostat VPPs from Renew Home and ecobee could result in up to 48% growth for the residential VPP market.
Two of the top 10 thermostat OEMs by market share according to Parks Associates already have features that could be used to unlock similar functionality. Amazon already has a Choose Cleaner Energy feature for matching the carbon intensity of the grid that could be the foundation of something very similar to Renew Home’s Energy Shift Capacity. Sensi has some TOU and Ongoing Energy Efficiency Optimization that could similarly be the foundation for unlocking residential thermostats to support utility capacity programs. I forecast other thermostat OEMs are going to build out a similar capability for background VPPs participation to drive incremental revenue and possible discounts at the point of sale in the next 2 years.
Shatterdome’s launch makes a bet on ancillary services volatility to enable trading for VPP capacity. I agree with the bet on the increasing need and volatility for ancillary services (see May 5th issue). And the space for VPP optimization is crowded: aggregators have ancillary services optimization and dispatching in-house; GridBeyond, Fluence and Stem all offer this.
The differentiation I see is that Shatterdome is less focused on selling software or participating in ancillary services than trading off the volatility in these markets. With CPower’s acquisition by NRG, I would expect CPower’s capacity to be able to participate through NRG’s trading desk. Enel trading capabilities would provide similar offerings for Enel’s VPPs capacity. Shatterdome’s unlock is if they can add incremental value working with the battery software layers like Stem and Fluence and the VPP aggregators who don’t have trading desks today like Leap and Voltus.
What Did I Miss — or Get Wrong?
Spot a story that should have been in this week’s issue? Disagree with the way I’m interpreting the facts? Just comment in notes with a link to the story or your take.
Opinions are my own and not the views of my employer. Research and drafting for this issue was produced with the assistance of Claude AI. All editorial decisions are mine.