Greenstar Solar vs Sunsave: most-reported complaints compared
Most-reported issues at Greenstar Solar and Sunsave, according to reviewers on Trustpilot — classified by our automated reader and backed by verbatim quotes from distinct reviews. This is a side-by-side of what reviewers report, not a score, rating or recommendation for either company.
Greenstar Solar
TrustScore 4.8 · 127 reviews on Trustpilot.
124 reviews analysed, 2024-11-19 to 2026-11-11.
Complaint rate (recent window): 2%
100% of negative reviews get a company reply.
“Customers are being promised premium AIKO panels, yet I have witnessed installations where completely different brands have been supplied instead”
Sunsave
TrustScore 4.7 · 474 reviews on Trustpilot.
242 reviews analysed, 2025-11-06 to 2026-11-10.
Complaint rate (recent window): 5%
100% of negative reviews get a company reply.
“Adverts are highly misleading”
Method: reviews are classified into a fixed complaint taxonomy by an automated reader; every category shown is backed by at least two verbatim quotes from distinct reviews. Figures are census classifications, not official statistics, and reflect what reviewers reported — not findings of wrongdoing by either company. Not affiliated with, endorsed by, or sponsored by Trustpilot A/S, Greenstar Solar or Sunsave.