Generation Mix
Where Britain’s Power
Comes From Right Now.
Each bar shows live output in GW and percentage of total demand. Data from the Carbon Intensity API and Elexon BMRS.
Why It Matters
The Grid Can’t Always
Go Where You Need to Work.
Grid demand peaks unpredictably
Even when renewables are high, grid capacity at your site isn’t guaranteed. Construction sites, remote film locations, and temporary events sit outside reliable grid infrastructure.
Fossil backup burns money and carbon
Diesel generators are the default off-grid solution — but they’re expensive to run, loud, and emit CO₂ regardless of what the National Grid is doing. JAM Power BESS saves up to 70% in fuel costs.
See hire options →Silent, zero-emission on-site power
JAM Power units run silently at 0dB and produce zero local emissions. Whether carbon intensity on the grid is high or low, your site operates cleanly and compliantly.
View the range →Battery storage is the grid’s future
The National Grid increasingly relies on battery storage to balance renewable intermittency. Portable BESS brings that same technology to your project — deployable anywhere in Great Britain.
Our technology →Carbon Intensity Explained
What Does —g CO₂/kWh
Actually Mean?
Carbon intensity measures how much CO₂ is emitted per unit of electricity generated. When it’s low, the grid is running clean. When it’s high, fossil fuels are doing the heavy lifting.
For sites running diesel generators, their effective carbon footprint is fixed regardless of grid conditions. Switching to JAM Power BESS — especially when charged from renewables — dramatically reduces project emissions.
See our LiFePO4 technologyReady to go off-grid, cleanly?
Portable Power.
Zero Compromise.
JAM Lite, JAM Pro, and JAM Max — scalable portable BESS for construction, events, film & TV, telecoms, and emergency services. UK-wide delivery.
Data sources: Carbon Intensity API (National Energy System Operator & University of Oxford) · Elexon BMRS · Contains BMRS data © Elexon Limited copyright and database right 2026. Inspired by grid.iamkate.com (CC0).