Solutions · Grid storage · BESS

See degradation
before it becomes a claim.

An A–F rating for battery energy storage across its whole life — from financing to underwriting to incident review. An overlay that sits on top of your BMS and analytics, not a replacement for them.

Get a sample BESS ratingSee the engine →
ASSET RECORD
Grid storage
BESS · LFP rack · 40 MW reference fixture
90.2
Grade A▲ 0.6 · 30d
cycle depthwithin envelope
degradationon LFP shape-curve
chemistryLFP (validated · shape)
REEF SYNTHETICreference fixture · illustrative
Across the lifecycle

One rating. Every stage of the asset’s life.

OPERATION

Continuous, driver-attributed grade.

The rating updates continuously — cycle depth, thermal excursions and duty attributed to the grade, tracked against the LFP degradation shape-curve.

90.2
TAS · Grade A
The battery science

Validated where it counts, honest about the rest.

The LFP degradation model is validated in trajectory shape— sub-5% error against an LFP/MATR reference. That’s the chemistry most grid storage runs. NMC/NCA support is in progress and we don’t claim its accuracy yet. We’d rather scope the claim than oversell it.

LFP trajectory
sub-5% error · shape validated · LFP/MATR
Duty-robustness
HT ↔ BESS zero-shot < 3%
NMC / NCA accuracy
in progress — not yet claimed
Who it’s for

Built for the party that carries the risk.

Operators & funds

The buyer. Grade the fleet of assets you own or operate — concentration risk, warranty posture, month-over-month movement.

Insurers

Recognition. Underwriting-ready evidence, not a black box score — and we never fabricate a loss distribution. Better terms are a possible outcome of clearer evidence, never a guarantee.

Lenders

Bankability. A pre-close grade and degradation envelope on the asset behind the loan — grounded in a validated model, not a spreadsheet assumption.

Put a grade on your storage.

Start with one rack. Get a sample rating on the reference fixture, or scope a pilot on your own fleet.

Get a sample BESS ratingScope a pilot →