Beyond installation: How solar and battery installers can unlock recurring revenue
For years, solar and battery installations have been seen as a one-time transaction….until now.
Customer acquired. System installed. Job complete. Move on to the next project.
But that model leaves significant long-term value on the table.
Installers now have the opportunity to create ongoing lifetime value from every system they deploy, generating recurring revenue long after installation.
Joulen provides the intelligent battery optimisation and energy market trading platform that makes this possible.
The platform
On its own, a battery has limited influence in energy markets. But when thousands of batteries are coordinated, they become a flexible energy portfolio capable of unlocking new revenue streams. And this is where Joulen comes in.
Our PARIS Platform:
Identifies the most valuable times to charge and discharge
Coordinates thousands of battery assets simultaneously
Captures value from flexibility and energy market trading
Maintains normal site operations and customer priorities
Reports performance and revenue back to clients
Instead of every battery working alone, Joulen turns distributed assets into a coordinated Virtual Power Plant.
The partnership
Joulen enables solar installers, developers, and asset owners to generate new ongoing revenue from batteries already deployed in the field.
We do this by:
Aggregating batteries into a Virtual Power Plant
Trading flexibility and energy in multiple markets
Optimising dispatch to maximise value
The model
Joulen generates revenue for you by trading flexibility in energy markets
We take a small share of the value created
The majority of revenue goes to our partners
Installers can use this value to:
Improve customer ROI
Drive better profit margins
Build long-term customer relationships
Strengthen the commercial case for solar and storage
Battery integration
Joulen connects to battery assets in two ways:
Cloud integration with compatible battery platforms
Small on-site gateway device where required
The integration approach depends on the battery manufacturer and site configuration but Joulen supports a wide range of brands, including Fox ESS and Solax.
Our platform is also modular and white-label ready, allowing partners to add revenue-generating capabilities alongside their existing energy services.
Market access
Joulen holds the UK market roles required to unlock the full value of battery flexibility.
These include:
Virtual Power Plant (VPP)
Coordinating thousands of distributed energy resources as a single controllable system.
Virtual Lead Party (VLP)
Allowing participation in the Balancing Mechanism, providing flexibility services to the grid.
Virtual Trade Party (VTP)
Enabling direct participation in wholesale energy markets, independent of the customer’s supplier.
These roles allow Joulen to trade and optimise batteries without requiring changes to supply contracts.
Start your recurring revenue journey
Speak to the Joulen team → Book a discovery call
Let's get Started
-Connect with an Expert
