10+ years
of experience with ElectraTherm ORC, including owning and operating the UK’s first unit
Almost 50
UK ElectraTherm units serviced and maintained by us
2.2M+ hours
of worldwide ElectraTherm run data behind every estimate
Exclusive
UK distributor, working directly with ElectraTherm
Factory-trained
at ElectraTherm in Georgia, USA
HOW AN ORC POWER MODULE WORKS
An Organic Rankine Cycle (ORC) Power Module works like a steam engine, but uses a working fluid that boils at a much lower temperature than water. That lets it make electricity from low-grade heat that would otherwise be wasted.
1. Heat in
Hot water from your process, 65–150°C, boils a low-GWP working fluid in the evaporator.
2. Expander generator
The vapour spins a BITZER twin-screw expander. It shares a sealed housing with the generator, so there is no shaft seal to leak.
3. Power out
A grid-tied induction generator exports 3-phase power. Leftover heat leaves through the condenser for drying or space heating.
CHOOSE YOUR POWER MODULE
Three models, one BITZER expander generator design. Download each brochure for the full specification.

6500B+
Up to 125 kW
Hot water 90–150°C
Heat input 0.8–2.2 MW
3-phase, 50 Hz grid
2.0 × 3.3 × 2.5 m

PM75
Up to 75 kW
Hot water 65–132°C
Heat input 0.6–1.6 MW
3-phase, 50/60 Hz grid
1.8 × 2.4 × 2.2 m

AC800
Up to 75 kW
Cools and generates
Hot water 65–116°C
Heat input up to 1.2 MW
2.5 × 9.5 × 2.2 m
Not sure?
We will size it
Send us your heat data.
We model your site and
recommend the right
Power Module.
THE 6500B+ ON SITE



UNDER PROMISE, OVER DELIVER.
Every estimate runs your heat data through the ElectraTherm Smarter Tool, then checks it against five years of weekly data from your nearest weather station.

PROVEN BEFORE IT SHIPS. SUPPORTED FOR LIFE.
Every Power Module passes a Factory Acceptance Test at its sold design point before it leaves the line. Once it is on site, our engineers service and maintain it alongside the rest of the UK fleet.
â– Factory Acceptance Testing against your quoted performance
â– Installation support and commissioning
â– Planned servicing and maintenance, including expander generator swaps
UPGRADE EXAMPLE: ELECTRATHERM 6500 TO THE BITZER EXPANDER GENERATOR





GOT WASTE HEAT?
Fill in our Request for Information form and send it to sales@koolbricks.co.uk. We’ll show you what your heat could generate, backed by real fleet data.

