# Bay Area: what a 50 MW connection costs under Pacific Gas and Electric

URL: https://open-factory.com/power/bay-area/
Data as of: 2026-08-21
Publisher: Open Factory, https://open-factory.com

**What does a 50 MW connection cost in Bay Area?** In Bay Area, Pacific Gas and Electric connects a 50 MW load under Electric Rule 30 (retail transmission-level interconnection 50 to 230 kV; advance-and-refund), docket CPUC D.25-07-039 (Application 24-11-007). Minimum bill: none (Rule 30 is a cost mechanism; PG&E has no large-load minimum-take tariff). Term: none in Rule 30. Realistic energization: 2031 to 2032. Open Factory's Large-Load Cost Table, as of August 21, 2026.

## Facts

- Market: Bay Area, CA (CAISO)
- Utility: Pacific Gas and Electric
- Tariff or rule: Electric Rule 30 (retail transmission-level interconnection 50 to 230 kV; advance-and-refund)
- Docket: CPUC D.25-07-039 (Application 24-11-007); sheet effective 2025-12-04 (interim implementation)
- Status: approved (interim)
- Large-load threshold: transmission-level service (no MW figure in the rule)
- Study fee: Rule 30 study process (deposit amount not in the sheet)
- Security or collateral: advance equal to the project-specific cost estimate for service facilities interconnection upgrades and network upgrades
- Minimum bill: none (Rule 30 is a cost mechanism; PG&E has no large-load minimum-take tariff)
- Contract term: none in Rule 30
- Ramp: none
- Exit fee: terminate before in-service: PG&E keeps costs incurred and returns the rest; terminate after in-service: all remaining refunds forfeited
- CIAC exposure: customer advances 100% of Facility Types 1 to 3; refunds up to 10 years through the Base Annual Revenue Calculation with final rules set in A.24-11-007; Special Facilities carry a monthly cost-of-ownership charge
- Realistic energization, 50 MW: 2031 to 2032
- Verification: VERIFIED (rule sheet) except study deposit amount
- Data as of: August 21, 2026

## Questions

### What does a 50 MW connection cost in Bay Area?

Pacific Gas and Electric: study fee Rule 30 study process (deposit amount not in the sheet); collateral advance equal to the project-specific cost estimate for service facilities interconnection upgrades and network upgrades; minimum bill none (Rule 30 is a cost mechanism; PG&E has no large-load minimum-take tariff); term none in Rule 30.

### When can a 50 MW load be energized in Bay Area?

2031 to 2032. CPS Energy planning presentation: Silicon Valley 72 months; PG&E has 12.7 GW in pipeline with 490 MW of executed interconnection agreements and expects to serve 1.8 GW by 2030.

### Which tariff applies to large loads in Bay Area?

Electric Rule 30 (retail transmission-level interconnection 50 to 230 kV; advance-and-refund); docket CPUC D.25-07-039 (Application 24-11-007); sheet effective 2025-12-04 (interim implementation); status: approved (interim).

### Is this rate proposed or approved?

Approved or in effect as of the data date (approved (interim)). VERIFIED (rule sheet) except study deposit amount.

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- [Introducing the Large-Load Cost Table: 15 Markets Side by Side](https://open-factory.com/articles/large-load-cost-table-launch/)
- [What 50 MW Costs in 15 US Markets](https://open-factory.com/articles/what-50mw-costs-15-markets/)
- [The 2% Funnel: 474 GW Requested, 9 GW Approved, 5.8 GW Energized in ERCOT](https://open-factory.com/articles/ercot-funnel/)
- [Tariffs, September 2026: The Actual Schedule for Machinery and Electrical Gear](https://open-factory.com/articles/tariff-schedule-2026/)
- [Modular Is Not Cheaper: A 50 MW Prefab Electrical Room, Line by Line](https://open-factory.com/articles/skids-vs-stick-built/)
- [800 VDC Will Strand Your White-Space Frame Agreement](https://open-factory.com/articles/800vdc-strands-frame-agreements/)

## Sources

- [Open Factory Large-Load Cost Table](https://open-factory.com/models/large-load-cost-table/)
- [pge.com (effective 2025-12-04)](https://www.pge.com/tariffs/assets/pdf/tariffbook/ELEC_RULES_30.pdf)
- [eta-publications.lbl.gov p.8](https://eta-publications.lbl.gov/sites/default/files/2026-08/rate_designs_large_loads_2026.08.10.pdf)
- [utilitydive.com (2026-07-24)](https://www.utilitydive.com/news/pge-claims-127-gw-in-data-center-pipeline-as-utility-courts-smaller-loads/826099/)

Model: https://open-factory.com/models/large-load-cost-table/
Calculator: https://open-factory.com/tools/interconnection-cost/