Skip to main content

Storage Revenue Modelling & Market Benchmarking

BESS Index - Operational & Multi-Market Benchmarking

A transparent, market-driven BESS revenue benchmark for Germany, the Netherlands and Belgium - combining realistic trading models, multi-market revenue stacks, and configurable battery assumptions. Delivered via the Montel EnAppSys platform.

Key capabilities

Montel’s battery analytics are informed by extensive work representing over €1 billion in financed projects and 1 GW of installed capacity. This foundation helps ensure the BESS Index delivers realistic, credible and actionable benchmarks.

Built for battery developers, operators and traders, it reflects how BESS assets actually perform across European power markets accounting for trading constraints, market liquidity and asset configuration.

Analyse how battery revenues are generated across all relevant market layers, including Day-Ahead, Intraday and balancing services such as aFRR.

The breakdown shows the contribution of each market, helping you understand where value is created and how different revenue streams interact.

Benchmark more than 80 battery setup variants by adjusting power, energy duration, state of charge and cycle limits.

This allows benchmarks to be aligned closely with your asset’s real-world operating context and trading strategy.

Assess both realistic and theoretical revenue scenarios using multiple benchmark models, including Perfect Foresight, Market Practice and Continuous Intraday.

Comparing these models provides upper and lower reference points and helps identify achievable performance.

Combine highly granular daily results with long-term historic data to uncover trends, evaluate strategies and analyse performance over time.

This supports both short-term assessment and longer-term strategic planning.

Visualise results through customisable dashboards, charts and tables, or access the data directly via API feeds.

This ensures the BESS Index integrates seamlessly into existing tools, workflows and analytical environments.

Deep market expertise, real-world accuracy

Real-time market insights

The BESS Index on EnAppSys is grounded in real trading data and market practice, validated by leading developers, investors, and operators.

By combining decades of market experience with advanced analytics, Montel delivers benchmarks that reflect how markets actually behave, not how they behave under perfect assumptions.

Available today for Germany, the Netherlands, and Belgium.

  • Benchmarks validated against real, financed BESS projects

  • Assumptions fully transparent and adjustable

  • Designed for developers, investors, operators, and financiers

Transparency that builds trust

Full transparency. Real comparability.

Every data point in the Montel BESS Index is traceable, reproducible, and fully explained.

Key benchmark assumptions — including market participation, cycle limits, and operational constraints — are visible and adjustable. This ensures assets can be compared on equal terms, across markets and configurations.

No black-box algorithms. No unrealistic revenue figures. Just clarity and control.

Models & Methology

How the BESS Index on EnAppSys works

The Montel BESS Index, built on the EnAppSys platform, combines real-time power market data, historic benchmarks, and advanced optimisation modelling to simulate battery performance under realistic market conditions.

Our methodology is based on the rolling intrinsic principle continuously re-evaluating market opportunities to reflect how trading decisions, state of charge, and capacity constraints interact throughout the day.

Benchmark Models included:

Calculates the theoretical upper bound of achievable revenues using historical market prices. Useful for understanding the maximum potential of an asset.

Mirrors real trading behaviour and operational constraints to provide a realistic, “revenue-to-beat” benchmark.

Simulates sub-hourly trading decisions in continuous intraday markets, capturing real-time volatility and liquidity effects.

Advisory services

Configuration & Comparison

No two batteries operate under the same conditions. The Montel BESS Index allows you to benchmark assets across a wide range of realistic configurations - ensuring comparisons reflect how your asset is actually built and operated.

Example configuration dimensions:

  • Power capacity (e.g. 1 MW, 10 MW, 100 MW)

  • Duration (1h / 2h / 4h)

  • Initial state of charge

  • Daily cycle limits

By combining these variables, Montel BESS generates 80 unique configuration scenarios, each benchmarked across all three mode

Optimise revenues for your BESS project