АльтСолар vs Гронэнерджи: which is better? Comparison 2026
By our public methodology АльтСолар scores 51 out of 100 and Гронэнерджи scores 45. Below: the factors and facts where they differ, each fact with its source.
Score breakdown
| АльтСолар | Гронэнерджи | |
|---|---|---|
| Trust | 53 | 38 |
| Warranties | 8 | 15 |
| Track record | 25 | 41 |
| Services | 100 | 100 |
| Transparency | 100 | 60 |
Pros and cons
АльтСолар
- Legal entity and number confirmed
- Prices published
- Complaints procedure described
- Turnkey installation offered
- Short warranty on the work
- No trade qualification stated
Гронэнерджи
- Legal entity and number confirmed
- Prices published
- Turnkey installation offered
- Service after installation offered
- Short warranty on the work
- No trade qualification stated
Facts side by side
| Fact | АльтСолар | Гронэнерджи |
|---|---|---|
| Year founded | 2014 altsolar.ru | Not verified |
| Legal entity and registry number stated | Yes altsolar.ru | Yes gronenergy.ru |
| Installer qualification stated | No altsolar.ru | No gronenergy.ru |
| Warranty on the work, years | 1 altsolar.ru | 2 gronenergy.ru |
| Stated installed capacity, kWp | Not verified | 850 gronenergy.ru |
| Stated installations | 300 altsolar.ru | 50 gronenergy.ru |
| Turnkey installation | Yes altsolar.ru | Yes gronenergy.ru |
| Service after installation | Yes altsolar.ru | Yes gronenergy.ru |
| Help with financing or subsidies | Yes altsolar.ru | Yes gronenergy.ru |
| Panel brands named | Yes altsolar.ru | Yes gronenergy.ru |
| Inverter brands named | Yes altsolar.ru | Yes gronenergy.ru |
| Prices published | Yes altsolar.ru | Yes gronenergy.ru |
| Complaints procedure | Yes altsolar.ru | Not verified |
| Contact channels (of 4) | 4 altsolar.ru | 4 gronenergy.ru |