- What we know
- CPS residential comparison rate was 12.9¢/kWh (TTM to Jan 2026 at 1,000 kWh). A June 2026 board discussion cited a $191.77 average monthly bill. Peak-demand growth was revised from 115 MW/year to 260 MW/year. LBNL’s 2019–2025 national work found grid investment, gas prices, disasters, and policy as primary price drivers — not a single data-center formula.
- What we don't know
- The tariff that will actually apply to each large load; how much of new generation and transmission is assigned to the customer vs the class; the 2027–2030 rate path under a high-load case.
- Best source class
- LBNL large-load literature; EIA; utility rate cases
- Local source
- CPS Energy board books; PUC filings
- Industry claim
- Large loads can lower average rates by spreading fixed costs if they pay their way.
- Community claim
- Households will pay for substations and generation built for campuses.
- Independent reading
- Both can be true depending on the tariff. The tariff is the evidence.
- Last updated
- 2026-09-04