Texas battery VPPs: Tesla Electric, Octopus, and utility plans compared

Texas is the only large US battery market where the grid-services money reaches you through a competitive retail electricity plan rather than through your utility. That single structural fact reorganizes everything: which programs exist, what they pay, what happens when you switch providers, and what question you should be asking before you buy a battery.

This page states each program's terms only where the administrator publishes them, with the source and the date we read it. Retail plans in Texas change faster than utility tariffs anywhere else. Read this as a map of where to look, then confirm with the provider before it affects a purchase.

The ERCOT layer underneath

Texas has no statewide battery purchase rebate, a point our Texas report covers alongside the rest of the state picture. What it has instead is a wholesale market pilot that lets aggregated home batteries participate directly.

ERCOT describes it plainly: the Aggregate Distributed Energy Resource Pilot Project "was established through Public Utility Commission of Texas (PUCT) Project No. 53911" and "will evaluate the participation of ADERs in the ERCOT wholesale market." An ADER is "a Resource consisting of multiple individual metered sites/Premises connected at the distribution system level that has the ability in aggregate to respond to ERCOT Dispatch Instructions." (Source: ERCOT, Aggregate Distributed Energy Resource (ADER) Pilot Project, read August 6, 2026.)

Two things follow from the word pilot. First, it is governed phase by phase under a governing document the ERCOT board approves, which means the rules can change between phases. Second, participation runs through registered aggregators, not through you. When a Texas program tells you it is "enabled through the ERCOT ADER pilot," that is what it means.

Tesla Electric VPP

What it is. Tesla's page describes it as a virtual power plant for Powerwall owners who are Tesla Electric members, "enabled through the ERCOT Aggregated Distributed Energy Resource (ADER) pilot project." (Source: Tesla, Virtual Power Plant Powered by Tesla Electric in Texas, read August 6, 2026.)

Eligibility as published. You must be a Tesla Electric member in Texas in good standing, not enrolled in a conflicting ERCOT or non-utility demand response program or another virtual power plant, have at least one Powerwall excluding Powerwall 1, hold a valid interconnection agreement, maintain an active Tesla account and internet connection at all times, and be in one of the transmission and distribution service provider territories where Tesla has established an aggregation. Tesla states qualification "can take up to two months from your enrollment date," and that enrollment is then automatic.

What it pays. Tesla publishes no rate. The page says participation "will earn you a monthly credit on your electricity bill," that compensation "depends on the number of Powerwall batteries in your home that you have enrolled," and that details "may be found in the Electricity Facts Label (EFL) for both the Tesla Electric Fixed and Dynamic plans in the Tesla app." It adds the caveat directly: "compensation earned during a billing period will vary from customer to customer."

The control trade, which is unusually explicit. Asked whether you can opt out of dispatches, Tesla answers "No." On the Dynamic plan you can raise your Backup Reserve to limit discharge, and Tesla warns that doing so is "strongly correlated with your monthly bill value." On the Fixed plan, Powerwall settings including Backup Reserve, Storm Watch and grid charging are "automatically configured in a way that maximizes the amount of support your Powerwall can provide to the grid," and Tesla states you are "guaranteed a higher-valued monthly VPP credit" on that plan. Participation can be suspended by contacting support, with no restriction on re-enrolling.

That is a clear, honestly stated bargain: more control on Dynamic, more money on Fixed. It is also the only program on this page that publishes no number at all, which makes it the hardest one to compare.

Intelligent Octopus for Home Batteries

What it is. Octopus Energy's Texas battery plan, which "works to stabilize the Texas power grid by dispatching any available power from your battery back to the grid when it's needed." (Source: Octopus Energy, Intelligent Octopus for Home Batteries, read August 6, 2026.)

What it pays. "$20 a month for every five kilowatt hours of storage," which the page also states as "$4/kWh of storage per month." Octopus publishes an illustration: 5 kWh of storage at $20 a month or $240 a year, 20 kWh at $80 a month or $960 a year. This is the only program here that pays on installed capacity rather than on delivered energy or flat participation, which means the payment is knowable in advance.

Worth noting: one line on the page reads "every five kilowatts of storage" where the rest says kilowatt hours. That is a units slip in the copy, not a second offer, and the $4 per kWh per month restatement resolves it. Get the figure in writing on your plan documents anyway.

Terms as published. The plan runs on the standard Octo Green 12 rate at a 12 month locked-in rate. It "excludes export credits for excess generation," and Octopus states you get paid monthly "regardless of if the sun is shining, or the wind is blowing" as long as the system is connected. Octopus states it will not charge you for imports related to battery power sent back to the grid, and covers the cost of charging the battery for the power sent back.

Eligibility and control. Open only to Octopus customers with a compatible Enphase or SolarEdge battery system, for both new and existing customers. On reserve: "We can't guarantee a specific threshold, but we promise to never let your battery reserve go below 20%." On control: "By enrolling, you're giving Octopus Energy control of your battery," with the ability to opt out any time at the cost of the bill credit.

TXU Energy and Sunrun Battery Rewards

What it is. A Vistra and Sunrun aggregation program for customers who already have a Sunrun-installed system. (Source: TXU Energy, TXU Energy and Sunrun Battery Rewards, read August 6, 2026.)

What it pays. "$200 in prepaid digital rewards cards a year," delivered as digital rewards cards every six months. The footnote is the part to read: the reward requires your Sunrun system to be enrolled and your TXU account to be active at the time of fulfillment, it "is fulfilled with a prepaid digital card, subject to terms and conditions of card issuer," and TXU "reserves the right in its sole discretion to substitute a check of equal value for the prepaid card, and to otherwise modify or cancel the program at any time."

Eligibility and reserve. TXU states you can participate "with any plan if you have an activated Sunrun solar and battery system," which makes this the one program here that does not require a specific retail plan. On reserve: "Regardless of the make and model of your battery, you'll keep at least 20% of your battery's capacity for backup purposes during an outage." For LG Chem and SolarEdge owners the 20 percent is programmed and the battery will not send power to the grid during an outage. For Tesla Powerwall owners the 20 percent is a default that can be adjusted in the Tesla app "except during dispatch events," and Sunrun "retains the right to periodically reset the minimum state of reserve."

Gexa Battery Benefits 12

What it is. A 12 month fixed-price Texas retail plan built around a battery you let Gexa control. (Source: Gexa Energy, The Gexa Battery Benefits 12 Plan, read August 6, 2026.)

What it pays. "$50 bill credit for every billing period your system is paired to our battery optimization services," applied to the first invoice after enrollment and every invoice through the term, "provided you remain a customer in good standing." Gexa states that if you unpair the battery it "reserves the right to disallow the bill credit for that billing period," and that opting out of an individual event "may result in loss of bill credits for that billing period." The page markets this as up to $600 a year, which is the $50 figure multiplied by twelve.

Eligibility and reserve. Compatible with SolarEdge and Enphase battery inverters only. Gexa states it "will always preserve at least 20% as your personal energy reserve" and will never discharge below your set threshold, with weather-preparedness features that maximize state of charge before inclement weather. Events are visible in the app and can be overridden, with the credit consequence above.

The plan-lock detail. Gexa states it directly: "If you choose to switch to another REP, you will automatically be unenrolled from the product and will not receive any future incentives." That is the whole Texas structure in one sentence.

How to compare these four

The programs pay on four different bases, which is why headline numbers are close to meaningless side by side.

• Per kWh of installed capacity, monthly: Octopus, at $4 per kWh of storage per month. Knowable before you enroll, and it scales with battery size.
• Flat monthly participation: Gexa, at $50 per billing period. Does not scale with battery size, so it favors smaller systems on a per-kWh basis.
• Flat annual reward: TXU and Sunrun, at $200 a year in prepaid cards, conditioned on program enrollment and account status at fulfillment.
• Undisclosed, proportional to enrolled Powerwalls: Tesla Electric, where the figure lives in the Electricity Facts Label rather than on the public page.

Three questions separate a real comparison from a headline:

What happens to the underlying electricity rate? Three of these four are retail plans. A generous battery credit attached to an uncompetitive energy rate can cost more than it pays. Compare the full plan, including the energy charge and any base fee, not the credit in isolation. Our time-of-use explainer covers what to look for in the rate itself.

What are you giving up on export? Octopus states its plan "excludes export credits for excess generation." If you have solar and a meaningful export volume, that exclusion may be larger than the battery credit.

How long is the commitment, and what ends it? Octopus locks a rate for 12 months. Gexa is a 12 month term and unenrolls you automatically if you switch providers. TXU reserves the right to modify or cancel the program at any time. Tesla lets you suspend and re-enroll freely but does not let you opt out of individual dispatches.

The honest framing

Texas has more battery programs open to ordinary homeowners than almost any state, and the published amounts are real. They are also the least durable part of any battery purchase. These are retail products in a market where plans are repriced constantly, sold by companies that reserve the right to change or cancel them, tied to short contract terms and narrow approved-equipment lists.

The same caution we apply to every grid-services program applies here, and applies harder in a deregulated market: treat this income as upside on a battery that already earns its place through backup value and bill savings. Run your own numbers in the calculator with the program income set to zero, then look at what the program adds on top. A purchase that only works because of a 12 month retail credit is resting on the least durable part of the math.

The national picture is in our VPP inventory, the concept itself in virtual power plants explained, and the contrast with a long-running utility program is worth reading in our ConnectedSolutions guide, where the money comes from the utility and survives a change of supplier.