Battery Energy Storage System (BESS) Degradation & Arbitrage Optimization
A clean energy asset manager operating a 100MW / 400MWh grid-scale lithium-ion Battery Energy Storage System (BESS) co-located with a solar PV farm.
Run on Santulan · Renewable Performance
The challenge
BESS asset managers struggled to balance daily energy market revenue arbitrage (charging low, discharging high) against battery chemical degradation costs.
Aggressive daily cycling at high ambient temperatures caused accelerated lithium plating, reducing battery capacity prematurely.
Manual bidding strategies failed to capture fast frequency response price spikes in wholesale electricity markets.
How Santulan solves it
Electro-Chemical Health Modeling
Santulan tracks cell-level temperature, state-of-health (SoH), depth of discharge, and C-rate stress in real time.
Degradation-Aware Bidding Optimizer
Simulates exact battery degradation cost ($/MWh throughput) for every proposed charge/discharge cycle.
Wholesale Market Arbitrage Engine
Integrates with day-ahead and real-time wholesale energy price feeds, optimizing dispatch schedules to capture peak price spreads.
Dynamic Co-located Solar Charging
Coordinates solar PV generation curves with BESS charging schedules to minimize grid curtailment losses.
Automated Frequency Regulation Dispatch
Executes sub-second ancillary service bids when market prices justify high-frequency response battery cycling.
The outcome
- increase in net annual BESS operating margin
- 0%increase in net annual BESS operating margin
- eliminated solar PV curtailment losses
- 0%eliminated solar PV curtailment losses
22% increase in net annual BESS operating margin through degradation-optimized market bidding.
Extended battery asset operational lifespan by 3 years, delaying multi-million-dollar cell replacement cycles.
Eliminated solar PV curtailment losses by 94% using co-located smart charging control.
Representative scenario: a modelled industry situation showing how this accelerator applies. Figures are projections, not a named client result.
Capabilities used
Every accelerator is assembled from the same capability layer, so a workflow you adopt here shares its foundation with the rest of the portfolio.
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