The assessment
How it scores, by category
Market position
The data
Two things to check
Ask the installer: What usable capacity, backup power and warranted operating conditions will the installed SUN-BK250 configuration deliver?
Verification & sources
Market context
Global benchmark. This scorecard is benchmarked globally. A global score does not imply local availability, certification, warranty coverage, or installer compatibility.
Benchmark anchor. Scored model: SUN-BK250 · checked 2026-07-14. Evidence.
Sources & references · checked 2026-07-29
Moderate evidence coverage
13 of 22 scored criteria link directly to a published source.
Values marked estimated, derived, or not found remain visible on the audit sheet and do not carry the same evidential weight as a linked source. Coverage measures direct links, not an independent guarantee that a claim is correct.
- Sourced valuesData card →
- Warranty summary10-year product-warranty claim; detailed terms unpublished →
Evidence timeline
Recorded verification events for this scorecard. These are evidence checks, not historical score snapshots.
- Core scorecard evidence checked
- AU market evidence checked
- Series benchmark source checked
- Plain-language warranty summary checked
Scored by Solar Analytica Research
Stay across the benchmark.
New scorecards, score changes and market signals, published as they happen.
Our reading
SUN-BK250 scores 70, placing 2 of 8 in the Plug-in ESS class and within 0.2 points of the class leader. Its strongest scoring dimension is capacity & usability (100), above the class average of 97. Connectivity & Ecosystem (51) is the dimension with the most room to move.