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Joulen
For developers

Maximise returns. Reduce payback. Strengthen your asset economics.

Joulen provides the market access, optimisation, dispatch and trading capability needed to maximise revenue from C&I battery assets, helping developers and owners improve project economics and reduce payback periods.

Installers
OEMs
Aggregators
Suppliers
Developers
Works with the hardware you already run
  • Fox ESS
  • SolaX Power
  • Solis
  • Solplanet
  • Zervio
  • Growatt
  • Sigenergy

The route from asset investment to return

For C&I battery developers and asset owners, the commercial case doesn't end when the asset is built. The ability to optimise, dispatch and trade that capacity effectively has a direct impact on project returns and how quickly capital is recovered.

C&I battery projects are capital-intensive. Getting the strongest return from that investment requires more than simply connecting an asset to the energy market.

Market participation, revenue stacking, forecasting, bidding and real-time dispatch all influence how much an asset can earn and ultimately how quickly the original investment can be recovered.

Joulen brings these capabilities together, giving developers and asset owners the infrastructure and expertise to optimise the commercial performance of their portfolios without having to build a trading operation from scratch.

Whether you're assessing a new development, commissioning your first assets or scaling an established portfolio, we can help model the revenue opportunity and put the capability in place to capture it.

Optimisation that works for your investment case

The right commercial strategy starts with understanding what each asset can deliver. Joulen analyses asset characteristics, market conditions and available revenue streams to determine how capacity can be positioned and traded to maximise returns.

  • Optimise

    Forecasting and optimisation across wholesale and ancillary markets, identifying the strongest available revenue opportunities for each asset and portfolio.

  • Dispatch

    Low-latency, resilient dispatch supported by a 24/7 control centre, enabling assets to respond to market opportunities as they happen.

  • Trade

    Market access and algorithmic bidding across GB and Irish markets, supported by expert trading execution. Use Joulen alongside an existing trading operation or outsource the capability to us.

Designed around project economics

For developers and asset owners, additional revenue is only meaningful if it improves the underlying investment case. Joulen can help you:

  • Improve project ROI

    by maximising the revenue generated from each asset

  • Reduce payback periods

    by increasing asset utilisation and access to multiple revenue streams

  • Strengthen development models

    with asset-level revenue forecasting and market analysis

  • Optimise portfolios as they scale

    rather than managing each asset in isolation

  • Access multiple energy markets

    through established market infrastructure

  • Avoid the cost and complexity

    of building an in-house trading and control operation

  • Retain control of your assets and commercial strategy

    while using Joulen for the capabilities you need

From development model to live portfolio

Joulen can support the commercial lifecycle of your assets from understanding the revenue potential of a prospective project through to optimising and trading commissioned assets.

  • For developers

    Incorporating realistic market assumptions and revenue opportunities into project modelling.

  • For asset owners

    Continuously optimising live assets against changing market conditions to support stronger returns throughout their operational life.

  • As your portfolio grows

    Joulen's market, trading and operational infrastructure can scale with it.

The infrastructure behind your returns

Joulen is a qualified BSC Party, Virtual Lead Party and Virtual Trading Party, with established capability across GB and I-SEM.

  • Purpose-built for large-scale flexible assets

    Our technology and trading infrastructure combines optimisation, market access, algorithmic bidding, dispatch and 24/7 operational control.

  • Without handing over control

    You don't need to build those capabilities yourself. And you don't need to hand over control of your investment strategy. Joulen provides the infrastructure around your assets to help make the numbers work harder.

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Optimise to maximise

What could your assets return?

Every portfolio has a different investment case. Talk to Joulen about detailed modelling and forecasting for your assets — including potential revenue, market participation and the impact on your project's payback and overall returns.