ComplaintCensus

BKV Energy vs Constellation: most-reported complaints compared

Most-reported issues at BKV Energy and Constellation, 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.

BKV Energy

TrustScore 4.5 · 147 reviews on Trustpilot.

100 reviews analysed, 2026-02-11 to 2026-08-11.

Complaint rate (recent window): 7%

100% of negative reviews get a company reply.

Overcharging43%
Billing errors29%
“Never before, have I ever paid as much with any other electric provider as I am with you!”
1★ Trustpilot review, 2026-03-01

Constellation

TrustScore 4.2 · 327 reviews on Trustpilot.

177 reviews analysed, 2026-04-30 to 2026-09-22.

Complaint rate (recent window): 15%

98% of negative reviews get a company reply.

Other18%
Account/app problems18%
Support unhelpful18%
Support unreachable18%
Billing errors11%
“I apply for service and recieved nothing with out an explanation.”
2★ Trustpilot review, 2026-09-06

Reported on both

Issues with an evidenced category (at least two verbatim quotes) on both sides.

IssueBKV EnergyConstellation
Billing errors29%11%

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, BKV Energy or Constellation.