UnbiasedSolar

Green DAY Power

Green DAY Power appears in public records for 3,167 home solar installations from 2018 to 2026 in California. It mostly installs systems homeowners own.

Installations on record
3,167153 in the last 3 years
Years active in records
92018–2026
Price vs. state average
−8%median $4.20/W (120 owned systems)
Leased or PPA systems
16%of recent installs
With a battery
11%recent installs
Typical system
7.1 kWmedian size
Installations per year

2026 is a partial year. Records cover only states that publish installer names.

Show as a table
PeriodValue
'1863
'19230
'20372
'21634
'22899
'23816
'24127
'2522
'264

Equipment they use most

Panels

  • Canadian Solar59%
  • Qcells21%
  • Vietnam Sunergy8%
  • REC3%
  • Vietnam Sunergy Joint Stock Company3%

Inverters

  • Enphase60%
  • SolarEdge37%
  • SunPower/Maxeon1%
  • Fronius1%

Microinverters on 60% and optimizers on 37% of recent systems. Equipment guide

Where they install

StateInstallationsLicense lookup
California3,167Check license

California contractor license numbers in state records: 1038673.0, 1038763.0. Verify with the CSLB.

What the numbers suggest

  • Prices on owned systems run somewhat below the average in the same state and year.
  • It mostly installs systems homeowners own.
  • A long track record (9 years in records) is a good sign for honoring a workmanship warranty.

Before you sign with any installer

  1. Verify the contractor license and look for complaints with your state board and attorney general.
  2. Get at least three quotes and compare them in our quote comparison tool.
  3. Ask who does the installation (their own crews or subcontractors) and who backs the workmanship warranty.
  4. Read our solar sales red flags.

Other active installers in California

Data: California DGStats (through Aug 2026). Installer names are normalized from public records and may combine related business names. We don't accept payment from installers. Something wrong? Request a correction.