Solar Savings in San Diego, California

San Diego homeowners on San Diego Gas & Electric pay an average of $265/month. At 41.0¢/kWh (Tier 1), here is what solar can realistically do for that bill.

$265
Avg Monthly Bill
$287
Est. Monthly Savings
$3,444
Est. Annual Savings
5.7 hrs/day
Peak Sun Hours

San Diego Gas & Electric Rates in San Diego

San Diego Gas & Electric charges 41.0¢/kWh for the first 130 kWh/month (Tier 1) and 57.0¢/kWh above that (Tier 2). The average San Diego household uses around 540 kWh/month, putting most usage into the higher Tier 2 bracket — where solar saves the most per kWh.

Rate trajectory

San Diego Gas & Electric rates have increased 89% (2014-2024). At that pace, the average San Diego bill could reach $501/monthby 2036 without solar. A solar system locks in production at today's value and insulates you from future hikes.

UtilitySan Diego Gas & Electric
Tier 1 rate41.0¢/kWh (first 130 kWh/mo)
Tier 2 rate57.0¢/kWh (above 130 kWh/mo)
Avg monthly bill$265
Avg monthly usage540 kWh
Net meteringNEM 3.0 (since April 2023)
Export credit~$0.10/kWh
Rate increase (10yr)89% (2014-2024)

Solar Production in San Diego

San Diego receives 5.7 peak sun hours per day — above the California average of 5.2. This is the key input that determines how much electricity your panels produce. More sun hours mean more kWh generated, which translates directly to a lower bill.

11,651 kWh
Annual Production (7kW system)
971 kWh
Monthly Production
5.7 hrs/day
Peak Sun Hours

Production estimates use a 7kW system at 80% efficiency (accounting for inverter losses, shading, and temperature derating). Actual output depends on roof orientation, tilt, and shading.

Real Savings Math for San Diego

At San Diego Gas & Electric's 41.0¢ and 57.0¢/kWh rates, the average San Diego homeowner pays ~$265/month. A 7kW system producing 971 kWh/month replaces most of that grid usage — cutting the bill to around $0/month.

Current bill
$265/mo
With solar
$0/mo
Monthly savings
$287/mo

Based on a 7kW system at $3/watt. Actual savings depend on your roof, usage pattern, and San Diego Gas & Electric rate plan. NEM 3.0 export credits (~$0.10/kWh) apply to power sent to the grid.

System Cost and Payback in San Diego

A 7kW system in San Diego costs approximately $21,000 installed (at ~$3/watt, the current California market rate). With annual savings of $3,444, the estimated break-even point is 6.1 years. Systems carry 25-year manufacturer warranties, leaving 15+ years of essentially free electricity.

System size7kW (typical for this usage level)
Installed cost (~$3/W)$21,000
Est. monthly savings$287
Est. annual savings$3,444
Payback period6.1 years
25-year savings$86,100+
Peak sun hours5.7 hrs/day
Annual production11,651 kWh
UtilitySan Diego Gas & Electric
CountySan Diego

NEM 3.0 and What It Means for San Diego Solar

Since April 2023, all new California solar installations fall under NEM 3.0. The key change: export credits dropped from near-retail rates to roughly ~$0.10/kWh. This makes self-consumption — using your solar power as it is produced — far more valuable than exporting to the grid.

What still works well
  • - Daytime AC, appliances, EV charging offset at full retail rate
  • - Battery storage shifts evening usage off-grid
  • - Protection from future rate increases (71%+ over 10 years)
What changed
  • - Export credits: ~~$0.10/kWh (was near retail under NEM 2.0)
  • - Oversizing panels for export is less financially efficient
  • - Battery pairing is now more important than before

Solar Incentives for San Diego Homeowners (2026)

  • ✓Net metering (NEM 3.0 in CA) — sell excess power back to your utility
  • ✓Federal Section 48E credit (commercial/PPA structures only — residential Section 25D expired Dec 31 2025)
  • ✓California Solar Rights Act — your HOA cannot legally block installation
  • ✓California property tax exclusion — solar system value excluded from assessment
  • ✓SGIP battery incentive — up to $1,000+ for battery storage (income-qualified programs available)

Incentive eligibility depends on your tax situation and installation timeline. Consult a licensed solar installer before making decisions.

Frequently Asked Questions — Solar in San Diego

How much can San Diego homeowners save on solar?
At San Diego Gas & Electric's current 41.0¢/kWh (Tier 1) and 57.0¢/kWh (Tier 2) rates, a typical San Diego household pays around $265/month. A 7kW solar system producing roughly 971 kWh/month can reduce that bill to approximately $0/month — saving around $3,444 per year.
What is the payback period for solar in San Diego?
A 7kW system in San Diego costs approximately $21,000 installed (at ~$3/watt). With annual savings of $3,444, the estimated payback period is 6.1 years. Systems typically last 25-30 years, so you can expect 15+ years of free electricity after payback.
How many peak sun hours does San Diego get?
San Diego averages 5.7 peak sun hours per day, which is above the California average of 5.2. This means a 7kW system produces approximately 11,651 kWh per year.
What is NEM 3.0 and how does it affect San Diego solar savings?
NEM 3.0 (Net Energy Metering 3.0) took effect in April 2023 for San Diego Gas & Electric customers. Unlike NEM 2.0, export credits are now around ~$0.10/kWh instead of near-retail rates. This means self-consumption — using solar power as it is produced — is more valuable than exporting to the grid. Pairing solar with a battery shifts more production to evening hours when you would otherwise buy from the grid.
What incentives are available for solar in San Diego in 2026?
In 2026, San Diego homeowners can benefit from: California's property tax exclusion for solar, the SGIP battery incentive, and the California Solar Rights Act (HOAs cannot block installation). Note: the federal residential solar tax credit (Section 25D) expired December 31, 2025. The commercial Section 48E credit remains active for PPAs and business installations.

More Solar Guides for San Diego

Solar Savings
Solar Savings in San Diego, California: How Much Can You Save?
Solar Cost
Solar Panel Cost in San Diego, California (2026 Prices)
Best Time to Go Solar
Is Now a Good Time to Go Solar in San Diego, California?
Incentives
Solar Incentives in San Diego, California: What You Can Claim in 2026
Payback Timeline
Solar Payback Period in San Diego, California: When Does It Pay Off?
NEM 3.0 Impact
NEM 3.0 and Solar in San Diego, California: What Changed?

Get a Real Quote for San Diego

These numbers are based on San Diego Gas & Electric rates and San Diego sun data. A local installer will give you exact figures based on your roof, shading, and actual usage.

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