Electricity rates — ZIP 78205
A household in ZIP 78205 (San Antonio) using 1,000 kWh a month pays about $1,218.68 a year on the cheapest of 1 generally available plan — RE - Residential Service from City of San Antonio, Texas (Utility Company). Rates checked September 2, 2026. A further 1 schedule is published but restricted — means-tested, closed to new customers, or needing particular equipment — and it is priced further down.
Not indexed. This page does not yet meet the site’s own publication threshold — covers the same tariffs as /utility/city-of-san-antonio-texas-utility-company; canonical points there. It is shown because the data behind it is real, not because it is complete.
Every priced plan, 1,000 kWh/mo
| Plan | Per year | vs cheapest | Effective |
|---|---|---|---|
| RA - Residential All-Electrictime-of-use · tiered · needs an all-electric home | $1,139.00 | −$79.68 | 9.5¢ |
| RE - Residential Service✓ cheapesttime-of-use · tiered | $1,218.68 | — | 10.2¢ |
Cost across usage levels
The cheapest plan at each consumption level, showing whether the ranking holds as usage changes.
- 500 kWh/mo — cheapest $649.20 (RE - Residential Service), dearest $649.20
- 1,000 kWh/mo — cheapest $1,218.68 (RE - Residential Service), dearest $1,218.68
- 2,000 kWh/mo — cheapest $2,374.96 (RE - Residential Service), dearest $2,374.96
What a typical bill costs
At 1,000 kWh a month the 2 priceable plans here run from $1,218.68 on RE - Residential Service to $1,218.68 on RE - Residential Service, with a median of $1,218.68.
Effective rates, bill divided by kilowatt-hours, span 10.2¢ to 10.2¢ per kWh at that usage.
How the answer changes with usage
RE - Residential Service is cheapest at every level tested — $649.20 a year at 500 kWh a month, $2,374.96 at 2,000 kWh.
How these plans are structured
Of 2 priceable plans: 2 tiered, 2 time-of-use.
Every plan carries a $9.50 fixed monthly charge.
Who provides these plans
Every plan here comes from City of San Antonio, Texas (Utility Company) — a limit of what has been indexed, not a claim that it is the only provider in ZIP 78205 (San Antonio).
What this does not cover
Service territories do not follow ZIP boundaries. These are the plans found at the coordinate this ZIP was resolved from, not a verified list for every address in it.
2 of these plans price by hour. WattClear does not know which hours a household uses, so those estimates carry lower confidence and say so on the figure.
New to these terms? The methodology page explains tiered bands, time-of-use periods and fixed charges, and sets out exactly what the rate engine assumes.
Estimate — your actual bill may differ.
Tariff structures from NREL/OpenEI Utility Rate Database (CC0 1.0), retrieved September 2, 2026.
Location resolved through the US Census Bureau Geocoder (Public domain) at 29.4241, -98.4936.