Counts from public records, not a review or rating. I have no partnership with Advanced Improvements; the name is as the utility recorded it.
Advanced Improvements at a glance
| License lookup | California Contractors State License Board |
|---|---|
| Systems in records | 501 |
| Years in records | 2011–2023 |
| Latest record | 12/2023 |
| States | California |
| Top cities | Yorba Linda, Corona, Irvine, Fullerton, San Clemente |
| Typical system | 6.6 kW |
| Main panel brand | LG Electronics Inc. |
| Main inverter brand | Enphase Energy Inc. |
| With a battery | 1% |
| Leased or PPA | 0% |
Records: LBNL Tracking the Sun.
Advanced Improvements systems by state
| State | Systems | Earliest record | Latest record |
|---|---|---|---|
| California | 501 | 2011 | 2023-12 |
Systems by year
Where Advanced Improvements installs
California
| City | Systems | Share of company's CA systems |
|---|---|---|
| Yorba Linda | 35 | 7% |
| Corona | 31 | 6% |
| Irvine | 30 | 6% |
| Fullerton | 23 | 5% |
| San Clemente | 20 | 4% |
| Long Beach | 17 | 3% |
| Placentia | 14 | 3% |
| Santa Ana | 14 | 3% |
| Laguna Hills | 13 | 3% |
| Orange | 12 | 2% |
| Laguna Niguel | 12 | 2% |
| Seal Beach | 11 | 2% |
Source: LBNL Tracking the Sun, residential systems in utility interconnection records. City as the utility recorded it. How I count.
Equipment and ownership
- Panels: LG Electronics Inc. (34%), Suniva (10%), United Renewable Energy Co., Ltd. (9%), Suntech Power (8%), CSI Solar Co., Ltd. (8%)
- Inverters: Enphase Energy Inc. (98%), SolarEdge Technologies Ltd. (0%), Ablerex Electronics (0%), SMA America (0%)
- Leases and PPAs: 0% of its systems with known ownership were leased or under a power purchase agreement.
- Batteries: 1% of its systems had a battery on record.
Offered a lease or PPA? Read lease vs buy first.
Before you sign
- License. Look the company up with the California Contractors State License Board and check the name on the contract matches the license.
- Run the quote through the quote checker and the list in how to check a solar quote.
Companies of similar size in California records
Renewable Solar (510), San Diego Solar (508), Home Unplugged (505), Southern California Solar Energy (504), Built Green (499), Carlson Solar Energy (498), Golden State Power (496), Nationwide Sun (492).