Here’s a thing, dear reader: there is PLENTY of untapped energy that never gets accessed and distributed over the wires during extreme grid stress.

At the same time, Texas residences and businesses have installed massive amounts of grid-connected battery storage which now can be (but largely isn’t yet) synchronized and discharged back to the grid to help smooth brown-outs and prevent blackout situations — and to maximize the “ROI” for these owned assets.

Up to now, this hasn’t really been done due to a lack of coordination. But that coordination — in the form of Virtual Power Plant (VPP) programs — is now becoming an easy win-win-win option for electricity consumers all over the state. We’ve written about this here before. And since we last touched this topic, the story got a lot bigger — more on that below.

How VPPs Come to Market — Legislation Meets Consumer Demand

For years, efforts to bring VPP offerings (ergo participation) in Texas moved slowly because wholesale market participation for aggregated “behind-the-meter” battery storage assets did not formally exist. There was no regulatory or business infrastructure to make it happen. (*Industry Babble Definition here: Behind-the-meter (BTM) refers to energy equipment installed on a customer’s side of the electric meter — like solar panels and batteries — that serves on-site loads first rather than supplying the broader grid.)

That regulatory landscape changed with ERCOT’s ADER pilot in 2023.

“An Aggregate Distributed Energy Resource (ADER) is a collection of distribution-level premises aggregated to respond to ERCOT dispatch instructions.” — ERCOT ADER Pilot Overview (ercot.com)

“Small energy resources found in homes and businesses across Texas have incredible potential to continue improving grid reliability and resiliency by selling the excess power they generate to the ERCOT system. It’s a win-win for Texas. Home and business owners get paid for power they supply and consumers in ERCOT get more reliability.” — PUCT Commissioner Will McAdams

The regulatory side is still catching up to the demand, but it’s moving. The ADER pilot’s registered capacity limit has grown fast — 40 MW at Phase 1, 80 MW at Phase 2, 160 MW at Phase 3 in 2025 — and in March 2026, ERCOT raised that cap all the way to 500 MW, along with loosening participation rules for non-utility aggregators. That said, actual participation still lags the ceiling: as of February 2026, only 7 of 13 registered ADER resources were fully qualified to participate, totaling about 107.7 MW of qualified capacity. Compare that to the roughly 14 gigawatts of battery storage now installed across ERCOT, and you can see the gap this whole industry is racing to close — the hardware is there, the coordination is still catching up.

The folks that actually run the grid — the electric coops and utility companies — mostly jumped on-board:

“We’re actually empowering the member so they can participate in the wholesale market directly.” — Bill Hetherington, CEO, Bandera Electric Cooperative (Cooperative.com, 2024)

Private 3rd-parties jumped in over the course of 24′-25′ to partner with the various electric utilities and providers. Now in 2026, there is (finally, after a slow start) an explosion of VPP options for residential batteries and commercial battery energy storage (BESS) systems allowing energy storage to be collectively synchronized and discharged over the grid as needed.

Basically, battery system owners get paid higher returns to allow VPP programs to discharge some of their stored battery energy into the grid when it’s needed most. The idea is wrapped up in what is known as: Virtual Power Plants — aka “VPP”s.

The Big One: 16.8 Gigawatts, and a New Kind of Buyer

Okay, this is the part that’s changed the most since we last wrote about this. On June 24, 2026, Sunrun, Tesla, and Renew Home announced they’re aggregating more than 16 gigawatts — 16.8 GW by their own count — of home batteries and over 8 million smart thermostats into what they’re calling the largest distributed power plant in the country. The pitch is genuinely different from what’s come before: it’s aimed squarely at data centers and hyperscalers, not just utilities buying grid reliability.

“The grid of the 1800s cannot power the innovation of 2026. When data centers are asked to throttle down operations during the most expensive and stressful hours of the day, we can activate our distributed power plants to help provide them the power they need.” — Mary Powell, CEO, Sunrun

The market noticed — Sunrun’s stock jumped as much as 26% the day of the announcement. The companies say they already have 300+ MW ready to deploy in Virginia’s “Data Center Alley,” with a goal of 500 MW there by 2030, and they’ve put capacity forward for PJM’s Reliability Backstop Process too.

Worth being precise about scope here: this is a different, larger coalition than the Sunrun/NRG partnership already active in Texas (announced December 2025, targeting a 1 GW Texas VPP by 2035). The 16.8 GW figure is also a theoretical aggregate — rated battery capacity plus peak load-shift potential from thermostats, not 16 GW of firm around-the-clock generation. The 300 MW actually deployable today is the more honest number to anchor on, and enrollment, utility approvals, and PJM’s acceptance of the framework are all still pending. Still, it’s a real signal of where this is headed, and it reframes the whole VPP pitch: instead of selling flexibility back to your utility for a modest credit, distributed batteries are increasingly being pitched directly to the buyer with the most urgent demand and deepest pockets — data centers.

Other Programs Already Live or Coming Online in Texas

That 16.8 GW deal is the headline, but it’s not the only game in town. Here’s what else is active or announced:

• SunRun / NRG Texas VPP — Announced December 2025, targeting a 1 GW virtual power plant in Texas by 2035, aggregating residential batteries to dispatch into ERCOT during peak demand. 🔗 sunrun.com
• sonnen VPP (SonnenConnect Texas, via SOLRITE) — A virtual power plant power purchase agreement offering solar + battery with no upfront cost and grid support. Worth watching: industry reporting suggests sonnen’s Texas VPP is on track to overtake Tesla’s as the largest in the state by the end of 2026. 🔗 solriteenergy.com/texas 🔗 sonnenusa.com/virtual-power-plant/sonnenconnect-texas
• Octopus Energy Intelligent VPP (Texas) — Bill credits for enrolling battery storage (typically Enphase systems) in the VPP program while retaining backup capability. We’ve covered this one in more detail. 🔗 Our Octopus + Enphase VPP writeup
• Rhythm Energy VPP — Was tracking toward a 2026 residential launch as of our last check; status should be confirmed before republishing given how fast this space is moving. 🔗 gotrhythm.com
• Tesla Electric VPP — Live for Powerwall owners in Houston and Dallas via ERCOT’s ADER program. 🔗 tesla.com/support/energy/virtual-power-plant/tesla-electric
• Austin Energy’s Power Partner pilot — This one’s live now, not just “expected.” Enrolled batteries (currently Tesla, FranklinWH, and SolarEdge, with Generac and Enphase listed as coming soon) get a $500 upfront payment plus roughly $75/kW in annual performance payments — AE’s own worked example nets about $324/year on a single Tesla Powerwall. It’s capped at 1,500 customers program-wide, with roughly 125 enrolled as of June 2026, so there’s real room to join. Full details in our Austin Energy 2026 incentives breakdown.

Residential: Why Homeowners Are Re-Engaging

Over the past few years, Texas solar “buy-back” (solar energy export) rates have weakened. In most areas, the credit you receive for exporting excess solar power no longer matches what you pay to consume electricity. In plain terms: utilities often buy low and sell high. As Regan George, CEO of Solrite Energy, put it:

“Homeowners are looking for a new buyback program… but they’re not finding it in the market.” — Regan George (Latitude Media, Feb. 11, 2026)

With all the new VPP options popping up around the state, residential batteries aren’t just sitting on the wall for outage backup and peak usage triage — they can potentially be coordinated and dispatched as part of a larger grid resource.

Meanwhile, Texas grid-scale battery capacity has grown from a few hundred megawatts in 2020 to roughly 14 gigawatts by 2025 (Texas Comptroller, 2024; Modo Energy, 2025), signaling that storage is now a serious part of the state’s energy strategy. As noted above, only a small slice of that fleet is currently coordinated through ADER — which is exactly the gap the newer, larger private VPP programs (Tesla/Sunrun/Renew Home chief among them) are trying to fill outside the formal wholesale pilot process.

For homeowners, the way battery backup is perceived may be shifting — from merely a backup device for personal use into a multi-purpose energy asset that layers resilience, bill management, market participation, and grid stabilization into one system.

Commercial & Industrial: Where the Real Capacity Lives

Residential VPPs scale through participation. Commercial VPPs scale through power. And there are new options spinning up around the state for commercial property owners with solar + battery installed.

As Nick Chaset of Octopus Energy told The Texas Tribune:

“We want to show that you don’t need as many… big backup power plants, because these distributed energy resources are reliable…” — Nick Chaset, EVP North America, Octopus Energy (Commercial VPP Division) (The Texas Tribune, Feb. 18, 2025)

For commercial operators, “behind-the-meter” storage is already a financial tool. It may help reduce peak demand charges, support resilience, and limit exposure to volatility. Aggregation and VPP participation can add upside on top of that, but the primary case is still demand management and operational control. In practical terms, a single 500 kW commercial battery can provide more dispatchable flexibility during grid stress than dozens of residential systems combined — and with data centers now entering the picture as VPP buyers, that flexibility may carry even more value than it did a year ago.

Notes on Commercial VPP Participation

• ADER is the primary vehicle for true commercial VPPs — it allows businesses with batteries, flexible loads, or behind-the-meter systems to aggregate with others in ERCOT’s wholesale market. With the registered capacity cap now at 500 MW (up from 160 MW), there’s meaningfully more room for new participants than there was a year ago.
• Most named programs (Tesla, Sunrun/NRG, sonnen/SOLRITE) are marketed toward residential participation but can also enroll commercial battery assets if they meet eligibility and aggregation criteria.
• Utility or co-op pilots like Austin Energy’s Power Partner may provide additional C&I-friendly enrollment paths without a third-party retail electric provider requirement.

Conclusion: The Hardware Is Here — Now the Coordination Is Catching Up

Grid-attached battery capacity in ERCOT has grown from a few hundred megawatts five years ago to roughly 14 gigawatts today (Texas Comptroller, 2024; Modo Energy, 2025). That’s the easy part, and it’s largely done. What’s changing now is who’s actually coordinating that capacity and who’s buying it — a formal ERCOT pilot that’s still only qualifying capacity in the low hundreds of megawatts, alongside a fast-growing set of private VPP programs, the largest of which just got a lot bigger and started pointing its capacity at data centers instead of just the grid.

If you already have battery storage for your home or business — or you’re planning to add solar + battery — it’s worth looking into VPP participation to get more value out of what you’ve already got.

Got questions? Get in touch and we’ll help point you in the right direction.

We’ll keep watching this space and deliver you the actionable insights that matter.