Counts and license facts from public records, not a review or rating. I have no partnership with Underline Energy Concepts; the name is as the utility recorded it.
Underline Energy Concepts at a glance
| License | #1015714 · active · California Contractors State License Board |
|---|---|
| Held by | UNDERLINE CONCEPTS INC (dba UNDERLINE ENERGY CONCEPTS) |
| First licensed | 7/1/2016 |
| License expires | 7/31/2028 |
| Classes | C10 Electrical, C39 Roofing, C20 Warm-Air Heating, Ventilating And Air-Conditioning, B General Building |
| Contractor's bond | $25,000 |
| Workers' comp | through 12/10/2026 |
| Complaints | none on record |
| Cities in my records | San Diego |
| Systems in records | 39 |
License facts: California Contractors State License Board, checked 9/25/2026. Status can change at any time — look the number up again before you sign.
Underline Energy Concepts systems by city
| City | Systems | Years covered | Rank by systems | Share of city records | Earliest record | Latest record |
|---|---|---|---|---|---|---|
| San Diego, CA | 39 | 2022–2023 | 80 of 97 | 0.2% | 2016 | 2023-12 |
Source: LBNL Tracking the Sun, utility interconnection records for ZIP codes around each city. How I count.
Where Underline Energy Concepts stands among local companies
- San Diego: number 80 of 97; Sungenia Solar Solutions (39) is one place above, Next Door Home Construction (38) one place below. Its records in the area run from 2016 to 2023.
System size, batteries and leases
- San Diego: typical system 6.2 kW against 5.7 kW for the typical company in San Diego; 0% of systems had a battery. 0% of them were leased or under a PPA (all San Diego records: 18%).
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 San Diego records
Global Solar Electric (40), Unified Solar And Roofing (40), Sungenia Solar Solutions (39), Next Door Home Construction (38), Solcius (out of business) (38), Asi Hastings (37). Full list: solar companies in San Diego.