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Whole-House Generator Installation in Discovery Bay, CA

Discovery Bay sits in the same PG&E PSPS corridor as Brentwood and Byron, with one additional twist: it's a Delta waterfront community. Most homes here have private docks with boat lifts, dock lighting, dock refrigeration for the fishing haul, and — for the RV-and-boat households — 30A or 50A shore-power outlets that serve the toys. When PG&E de-energizes the East Contra Costa lines for three or four days in fall, the loss isn't just central AC and the fridge; it's also the boat lift, the dock lights, and (for households running their boats or RVs on shore power) the shore-power circuits themselves. Can Do It Electrical connects Discovery Bay homeowners with vetted licensed electricians who install whole-house standby generators — Generac Guardian 20-24kW, Kohler 20kW, plus the transfer switch wiring that keeps the dock circuits energized alongside the house loads. Work is performed by independent licensed contractors.

Why Discovery Bay is a whole-house generator market

Discovery Bay's PSPS exposure traces the same East Contra Costa fire-weather corridor as Brentwood and Byron — the transmission lines PG&E de-energizes during Sierra and Delta wind events feed the whole region. Three- and four-day shutoffs are not unusual in fall. Combine that with Delta summer heat (regular 100°F-plus stretches), the reality that most Discovery Bay homes are on well and septic (so no power means no water and no sewage pump), and the boat and dock infrastructure investment most homeowners want to protect, and the generator math is very clear here.

Portable generators are common as a stopgap, but they don't run central AC, they don't automatically start when the grid goes down, and they can't feed the dock circuits from a fixed transfer switch. Most Discovery Bay households that go through one bad PSPS event upgrade to whole-house standby within a year.

What a typical Discovery Bay install involves

Discovery Bay-specific sizing conversation

Standard Central Valley residential sizing (2-ton AC, gas water heater, gas range, no well) lands most households at a 20 kW unit. Discovery Bay's typical load profile pushes higher for specific reasons:

Total running load with AC on: often 9,000-11,000W. Peak surge during AC + well startup: 20,000-25,000W. That sizes most Discovery Bay households to a 22-24 kW Generac. Larger waterfront custom homes sometimes need 26-30 kW.

Discovery Bay neighborhoods we coordinate generator work for

What this costs in 2026

Most installs take 3-4 weeks total: 1-2 weeks for permit and propane tank scheduling, 2-3 days for pad, gas line, and electrical work, plus PG&E interconnection paperwork. See our main generator hookup page and our Brentwood generator page for adjacent scope.

Frequently Asked Questions

How long can a Discovery Bay generator run on a 500-gallon propane tank?
About 5-7 days at half load for a 22 kW unit. A 1,000-gallon tank (common on larger waterfront lots) doubles that. Most PSPS events are 2-4 days, so a 500-gallon tank is usually well-sized.
Will the generator run my well pump and septic pump?
Yes — this is critical for Discovery Bay installs and the transfer switch is programmed to prioritize them alongside AC and essential circuits. Losing the well pump for 4 days is a major issue that a properly-scoped install prevents.
Can I include the dock circuits in the generator protection?
Yes — the transfer switch feeds any circuit connected to the main panel. Boat lift, dock lighting, dock refrigerator, shore power outlets — all can be included in the protected load list. The electrician confirms during the sizing walkthrough.
Is a permit required in Discovery Bay?
Yes — Contra Costa County Building Inspection requires a permit for the transfer switch and electrical work, plus a separate permit if the propane tank is new. PG&E interconnection notification is required for any permanently-installed standby. The electrician handles all of this.
Does Can Do It Electrical install the generator directly?
No — Can Do It Electrical is a referral and job-coordination service. We connect Discovery Bay homeowners with licensed independent contractors who handle the electrical install, plus the propane and gas sub-trades if needed for fuel-line work.

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Can Do It Electrical is a referral and job coordination service. We are not a licensed electrical contractor. All electrical work is performed by independent licensed contractors. Contractor license numbers available upon request.