What shapes a battery’s opportunity space
- Technical availability: how often the battery can actually run
- Cycles per year: the contractual limit on throughput
- Round-trip efficiency: the energy lost between charging and discharging
- Ancillary service caps: the capacity prequalified for FCR and aFRR
- Ramp rates: how fast power can change, often set by the grid connection agreement
These factors interact, and their effect changes with market conditions. A battery’s potential isn’t fixed. It changes every day.
Why standard benchmarks fall short
Common benchmarks scale revenues per MW, group batteries by duration and assume 100% availability. These three factors are only a subset of what defines performance. A battery without prequalification for balancing services, for example, cannot access the same revenue streams as a prequalified battery with the same power and duration. Their earning potential differs from the start.
We measure each battery against its own potential
For every battery we optimize, an independent asset-specific index shows what it could have earned given its constraints and the market conditions it actually faced. You see it directly in your Entrix dashboard. Performance is the ratio between what your battery earned and what it could have earned: the capture rate. We measure it over the full period, including downtime, because managing availability is part of an optimizer’s job.