Alternatives to Polysun
Other Solar design and proposal vendors we measure, sorted by how much they publish that Polysun does not. This is a comparison of disclosure, not of features or fitness.
10 shown of 9 that differ from Polysun on at least one criterion we measured for both. Public transparency score, not a product or security rating.
Polysun has 12 gaps in what we could measure: Data processing agreement, Subprocessor list, Data location stated, Status page with history, Public pricing, Certifications named, Uptime SLA with a figure, HTTPS enforced with HSTS, No third-party tracking before consent, security.txt (RFC 9116), Notice before subprocessors change, Named privacy contact. The column “publishes and Polysun does not” is the one that closes them.
| Vendor | Score | Publishes, and Polysun does not | Polysun publishes, and they do not | |
|---|---|---|---|---|
| Aurora Solaraurorasolar.com | 57/100 | 6 Data processing agreement, Data location stated, Status page with history, +3 | nothing | Compare |
| GreenLancergreenlancer.com | 22/100 | 2 Data location stated, HTTPS enforced with HSTS | nothing | Compare |
| Bodhibodhisolar.com | 17/100 | 2 Public pricing, HTTPS enforced with HSTS | nothing | Compare |
| OpenSolaropensolar.com | 17/100 | 2 Data location stated, Certifications named | nothing | Compare |
| PVcasepvcase.com | 17/100 | 2 Data location stated, Certifications named | nothing | Compare |
| Enerfloenerflo.com | 9/100 | 1 HTTPS enforced with HSTS | nothing | Compare |
| EverBrightgoeverbright.com | 9/100 | 1 HTTPS enforced with HSTS | nothing | Compare |
| HelioScopehelioscope.com | 9/100 | 1 Public pricing | nothing | Compare |
| Valentin Softwarevalentin-software.com | 4/100 | 1 Named privacy contact | nothing | Compare |
| Enactenact.solar | 0/100 | nothing we found there and not here | nothing | Compare |
Only criteria we could measure for both are counted. Where we could measure one and not the other, the row is silent: that would be a statement about our measurement, not about either vendor. Every single result with its source is on the two profiles.