Typical home: Worth it

Solar in La Mesa, CA

With SDG&E's electricity at about 45.1¢ per kWh and 1,698 kWh of sun per kW, solar is worth it for a typical La Mesa home today: about a 11.3-year payback.

Payback, typical home
11.3 yrsCalifornia: 10.9 yrs
25-year net
$20,044after paying $10,700
Sun
1,698kWh per kW per year
Electricity
45.1¢150% above U.S. average

A typical La Mesa home, by the numbers

UtilitySDG&E
Electricity use296 kWh a month
Best-value system3 kW, about 7 panels, 5,093 kWh a year (143% of use)
Cost$10,700
First-year savings$863
Payback11.3 years
Exported power3.7¢/kWh (SDG&E)

Cash purchase, no federal credit, 4.0% yearly rate increases. Run it with your own numbers.

Solar production per kW in La Mesa

kWh per kW each month, south-facing at 20° tilt. PVWatts v8 with local typical-year weather.

Show as a table
PeriodValue
Jan112
Feb113
Mar147
Apr153
May161
Jun162
Jul170
Aug170
Sep141
Oct137
Nov116
Dec115

Homes in La Mesa

Owner-occupied homes
48%
Single-family detached
46%
Median home value
$812k
Median year built
1971
Population
60,797
Solar installs, last 3 years*
1,777
Roofs suitable for solar†
95%

Census ACS 2020–2024. *Installations in public records for this area's ZIP codes. †Share of 14,994 buildings Google Project Sunroof rated technically suitable (2019 snapshot).

Older housing stock. Many homes here were built before 1975. Have the roof and electrical panel checked before signing; a roof or panel upgrade can add thousands. Roof first?

Installers working in La Mesa

Companies with the most installations in La Mesa's ZIP codes over the last 3 years, from public records. We don't take payment for placement.

  1. Sunrun 359 installs
  2. Semper Solaris 125 installs
  3. Baker Electric 117 installs
  4. Bright Planet Solar 66 installs
  5. Stellar Solar 57 installs
  6. Jamar Power System 53 installs
  7. Solartech 50 installs
  8. Tesla Energy 46 installs
  9. SunPower 43 installs
  10. Calstate Solar 42 installs

Always verify the license and get at least three quotes. Compare quotes side by side.

Questions about solar in La Mesa

Is solar worth it in La Mesa, CA?

For a typical home in La Mesa, solar is worth it at 2026 prices: a 3 kW system costs about $10,700 after state incentives, saves about $863 in year one and pays back in about 11.3 years. Enter your address for an estimate based on your roof and bill.

How much solar power does a system produce in La Mesa?

About 1,698 kWh per year for each kW of panels on a south-facing roof, based on PVWatts and local weather. That's 2% more than the California average. East- or west-facing roofs produce roughly 10–20% less.

Who is the electric utility in La Mesa?

Most homes in La Mesa are served by SDG&E, at about 45.1¢ per kWh on average.

How much do solar panels cost in La Mesa?

A fair cash price is around $2.90 per watt before incentives, so about $10,700 for a 3 kW system. There's no federal tax credit for homeowners who buy in 2026.

Nearby

Data: PVWatts (National Laboratory of the Rockies), EIA-861 2025 adjusted to 2026, U.S. Census ACS, LBNL Tracking the Sun, state policy research as of October 2026.