Octopus Energy vs ScottishPower: most-reported complaints compared
Most-reported issues at Octopus Energy and ScottishPower, 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.
Octopus Energy
TrustScore 4.8 · 876,929 reviews on Trustpilot.
3,669 reviews analysed, 2026-06-15 to 2026-09-27.
Complaint rate (recent window): 5%
97% of negative reviews get a company reply.
“Octopus have incorrectly switched our supply to another company, and attempted to charge my wife and I over £5000 of energy that we didn’t use.”
ScottishPower
TrustScore 4.4 · 208,522 reviews on Trustpilot.
3,603 reviews analysed, 2026-05-24 to 2026-09-27.
Complaint rate (recent window): 9%
93% of negative reviews get a company reply.
“a debt collector turning up at our door”
Reported on both
Issues with an evidenced category (at least two verbatim quotes) on both sides.
| Issue | Octopus Energy | ScottishPower |
|---|---|---|
| Support unhelpful | 42% | 37% |
| Billing errors | 28% | 22% |
| Support unreachable | 17% | 15% |
| Account/app problems | 10% | 16% |
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, Octopus Energy or ScottishPower.