Interactive Reliant, TXU, Tesla Electric, CPS Energy & Co-ops Payout & Bill Modeler
Sourced rates · estimates labeledTariff schedule verified 2026-11-12 against PUCT Project No. 53911 (Aggregate Distributed Energy Resource Pilot).
In deregulated ERCOT, always read the Retail Electric Provider’s Electricity Facts Label. A higher kWh rate can erase a $50 monthly battery credit. Municipal and co-op meters cannot switch to Reliant or TXU.
Official Reliant, TXU, Tesla Electric, CPS Energy & Co-ops Rate & Payout Schedule (2026)
| Tariff Metric / Tier | Verified Compensation / Rate | Eligibility & Dispatch Conditions | Source |
|---|---|---|---|
| Reliant Battery Perks | $50 bill credit per billing cycle while enrolled and eligible | Described in Reliant program materials and Enphase’s installer bulletin. Confirm current terms on Reliant’s Battery Perks page / TOS. | Enphase — Reliant Battery Perks program ↗ Last verified: Nov 12, 2026 |
| CoServ Peak Time Perks (Tesla Powerwall) | $30 bill credit every month of participation, up to $360/year per eligible battery | Events last no longer than 2 hours, limited to 125 per year, with a 20% reserve. | CoServ — PeakTime Perks Tesla Battery Program ↗ Last verified: Nov 12, 2026 |
| TXU Energy Battery Rewards | $150 digital reward card every six months ($300/year) | Not a monthly bill credit. Enphase + rooftop solar; leases/PPAs excluded. Reward does not increase with more batteries. | TXU Energy Battery Rewards ↗ Last verified: Nov 12, 2026 |
| CPS Energy My Battery Rewards (San Antonio) | $10 bill credit per event, year-round, customer-owned systems | CPS does not publish a guaranteed annual event count on the program page, so this calculator does not invent one. | CPS Energy — My Battery Rewards ↗ Last verified: Nov 12, 2026 |
| TOU / TDU savings in this calculator | Modeled estimate, not a specific REP EFL price | Any extra TOU tile is a modeling spread. Compare your actual EFL. | Estimate — not a filed REP rate Estimate Last verified: Nov 12, 2026 |
Every rate above includes a source link. Last verified: Nov 12, 2026. Rows marked Estimate are not copied from a primary tariff sheet.
The Fine-Print Catches: 4 Rules Utility Brochures Bury
Check the EFL Import Rate Markup Before Joining Any REP Plan
Paying 4c/kWh higher energy charges on 18,000 kWh/year of grid imports costs $720/year—erasing a $600/year VPP bill credit. Always compare the net Electricity Facts Label (EFL) at 1,000 and 2,000 kWh.
CPS Energy Excludes Leased Batteries
San Antonio's CPS Energy My Battery Rewards ($10/event) requires customer-owned storage, disqualifying third-party Section 48E leases.
No Single-Event Opt-Outs on Reliant Battery Perks
Reliant respects your app's backup reserve floor, but you cannot opt out of individual grid events without leaving the month-to-month program.
Municipal & Co-op Meters Cannot Switch to Reliant or Tesla Electric
Homeowners in Austin Energy, CPS Energy, PEC, CoServ, or GVEC must enroll in their local municipal/co-op program rather than ERCOT retail plans.
Whitelisted Inverters, Batteries & Enrollment Pathways
| Hardware Ecosystem | Eligible Models | How Enrollment Works | Storage / V2G Class |
|---|---|---|---|
| Enphase Energy | IQ Battery 5P / 10T | Reliant Battery Perks ($50/mo), TXU ($300/yr), GVEC | Stationary storage |
| Tesla | Powerwall 3, Powerwall 2 / + | Tesla Electric ERCOT ADER VPP, CoServ ($30/mo), GVEC | Stationary storage |
| SolarEdge | SolarEdge Home Battery & LG w/ SolarEdge Inverter | Reliant Battery Perks ($50/mo) & TXU Battery Rewards | Stationary storage |
Worked Household Bill Math: Real-World Scenario
Plano, TX (Oncor TDU) Homeowner — 2x Enphase IQ Battery 5P (10 kWh) on Reliant Battery Perks
1,550 kWh/month usage paired with existing 8.5 kW solar array.
- Reliant documented credit: $50 × 12 = $600/year, if you remain eligible.
- Any additional self-consumption or TDU avoidance in the calculator is a labeled estimate, not a guaranteed adder.
- CPS Energy remains $10 × actual events called; we do not assume a number of events.
- Installed battery prices in the hardware list are estimates.
Frequently Asked Questions (Reliant, TXU, Tesla Electric, CPS Energy & Co-ops)
Do I still get Reliant's $50 Battery Perks credit in months with no grid events?
Yes. As long as your eligible Enphase or SolarEdge battery remains online and enrolled, Reliant applies the $50 monthly bill credit even in billing cycles with zero dispatch events.
Can I join Reliant Battery Perks or Tesla Electric if I have CPS Energy or Austin Energy?
No. CPS Energy, Austin Energy, and electric co-ops (PEC, CoServ, GVEC) are outside ERCOT retail choice; use the Texas Program Selector above to model CoServ or CPS Energy directly.
Does this calculator include Tesla Electric or GVEC dollar amounts?
No fixed monthly average is shown for Tesla Electric’s ERCOT ADER credit because we did not verify a single official $/month figure. GVEC amounts are omitted for the same reason. Use the documented Reliant, CoServ, TXU, and CPS figures above.
Compare Neighboring & Benchmark US Utility Tariffs
Duke Energy Carolinas & Progress: PowerPair + Monthly Battery Control (Power Manager / EnergyWise)
Calculate 2026 Duke Energy PowerPair battery rebates ($5,400 storage + $3,600 solar) and monthly Battery Control credits using the $6.50/kW formula times the 70.9% capability factor (subject to change).
Georgia Power: Overnight Advantage vs. Smart Usage TOU & Demand Decoder
Compare Georgia Power Overnight Advantage (TOU-OA-15) and Smart Usage (TOU-RD-12) using official June 2026 energy charges and time-of-use fuel riders, with other riders labeled as estimates.
Xcel Energy Colorado: Renewable Battery Connect (2026 Reopened VPP)
Model Xcel Energy Colorado Renewable Battery Connect after May 2026: $250/kW general (cap $5,000), $1,000/kW income-qualified and $500/kW DIC (each capped at 75% of equipment cost), plus $100/year for five years.