More assets. More markets. More ways to earn.
Access the markets and trading expertise to maximise the value of every MWh across wholesale, balancing and ancillary markets.
One trading engine. Multiple routes to value.
Our growing portfolio gives us increasing market insight, trading experience and scale, helping us continually improve how we optimise assets and capture value for you.
Forecast
Assess market conditions, prices and asset availability.
Optimise
Identify the highest-value opportunity for every MWh.
Bid
Use algorithmic bidding to respond rapidly across eligible markets.
Execute
Expert trade desk oversight turns market opportunities into commercial outcomes.
Your assets don't have to rely on one revenue stream.
Energy markets move constantly. The highest-value opportunity today may look very different tomorrow. Joulen's trading and optimisation capabilities assess available markets alongside asset availability, operational constraints and existing commitments, allowing us to direct flexible energy towards the best available opportunity.
Wholesale
Capture opportunities from movements in energy prices by buying, selling and positioning flexible assets when market conditions create value.
Balancing
Participate in balancing markets and respond to the changing requirements of the electricity system.
Ancillary
Unlock additional revenue through ancillary market opportunities.
Stacked revenues
Don't rely on a single market. Our optimisation approach considers multiple revenue opportunities to determine the best combination for your assets and portfolio.
Markets move fast. Your trading strategy needs to move faster.
Algorithmic bidding
Continuously identify and respond to market opportunities through automated bidding across eligible markets.
Trade desk execution
Our experienced trading team provides market oversight, strategic decision-making and execution expertise.
Portfolio optimisation
Balance market opportunities against asset availability, operating constraints and commercial objectives.
The value of flexible energy comes from knowing when, where and how to trade it.
Joulen combines market access, algorithmic bidding, optimisation and expert trade desk execution to turn flexible energy assets into revenue, from individual homes and commercial sites to aggregated portfolios.
Whether you're installing batteries, managing an energy portfolio or developing large-scale storage, we give you the market access and trading capability to capture more value.
Built for growing flexibility portfolios
Whether you're managing hundreds of homes, a commercial battery portfolio or a growing fleet of flexible assets, Joulen gives you a route to market that can scale with you.
We handle the complexity. You scale the portfolio.
As an accredited Virtual Lead Party (VLP) and Virtual Trading Party (VTP), Joulen provides an established route into GB energy markets.
Market access
Connect your portfolio to relevant GB energy markets through Joulen's established market infrastructure.
Risk & compliance
Benefit from Joulen's established processes, market expertise and regulatory capability.
Settlement
We manage the processes required to reconcile trading activity and settle market revenues.
Performance that compounds.
Joulen helped us launch more innovative products in a year than in the previous ten.
Trading for every scale of flexibility
Homes & commercial batteries: Flex
Installers and energy companies can offer customers intelligent battery optimisation designed to reduce costs and increase the value of their energy assets.
Explore FlexAggregated portfolios: Trade
Aggregators, HEMS and EMS providers can connect flexible portfolios to Joulen's trading capability and access additional market revenues.
Explore TradeGrid-scale storage: Grid
Asset owners and developers can optimise large batteries and co-located portfolios across available markets and revenue streams.
Explore Grid
More results.
C&I · UKVATTS ProjectJoulen helped to demonstrate the power of battery storage and the unique Vertical Axis Tidal Turbines. Aiming to unlock a largely untapped renewable energy resource and targeting a
Read case study
Smart EV charging · GB wholesaleA leading smart EV charging platformJoulen acted as Virtual Trade Partner, giving a smart EV charging platform's aggregated flexibility a direct route into GB wholesale markets, a new revenue stream from assets already deployed.
£7MExpected incremental annual revenueRead case study
C&I portfolio · UKMulti-Site OptimisationBusinesses are increasingly adopting renewable energy and storage systems to power their operations and secure energy independence. This shift goes beyond carbon reduction. It's a
Read case study
Trading FAQs
Wholesale (day-ahead and intraday), balancing and capacity plus ancillary services and flexibility markets, every MWh placed where it earns most.
Yes. Joulen holds Virtual Trading Party (VTP) accreditation and the registrations needed to participate in wholesale and balancing markets.
A transparent portal shows revenue by market, benchmark comparison and the rationale behind trades, with exportable data for your own reporting.
What could your assets earn?
Get an indicative revenue calculation based on your asset portfolio.