Supplying our clients with the ability to generate power from waste streams, bio-mass and solar.

We specialise in the design, supply, and operation of solid fuel combustion systems. It is vital that we deliver clarity and a comprehensive level of detail to ensure your projects succeed. The localised approach to thermal treatment post recycling & recovery significantly reduces the national carbon footprint and will divert waste from landfills and remove the need to export millions of tonnes of waste every year.

About Us

CSS Renewables is a UK company specialising in the delivery of technology-led solutions across energy generation sectors. We specialise in the Waste to Energy, Bio-Mass and Solar sectors. We have developed a robust, proven and warranted supply chain for a profitable application to a huge waste market that has a significant thermal processing capacity after recycling.

Our Services

Design & Planning

We offer a complete planning service for our systems helping our clients to navigate the complex path to a successful project.

Solid Fuel Systems

CSS works with the best suppliers to deliver world class solid fuel combustion systems. Our equipment can process a wide range of fuel types up to 200,000TPA per machine.

Solar Energy

We all need to look at how we move forward with our energy needs. We offer our clients a full design, specification and delivery for solar projects.

Steam Boilers

Steam Boilers can be installed practically anywhere, and they stand out for compact size and power ratings of up to 900kW ensuring maximum instant power without wasting energy.

Boiler Systems

Conventional boilers are used extensively in industry. We have supplied systems to Automotive, Food Production, Breweries and manufacturing.

Flue Gas Treatment

The essential processing of post combustion gases is critical to both the environment and your project. We only work with and deliver the latest equipment to meet the tightest regulations.

Electric or Hydrogen?

Our systems offer you the choice of where you want to deploy your energy generation. We can supply innovative solutions to meet your business needs and take advantage of emerging technologies.

Last year a single CSS Renewables customer removed 100,000 miles of haulage journeys from the roads in Cumbria alone.

SWIP Systems

CSS Renewables and its world leading industrial partners, Hurst Boiler, R&R Beth and Siemens, offer a proven and guaranteed solution to turn your waste into energy, in the form of heat and electricity for use on – or exported from – your site to the grid.

Partners & Clients

Case Studies

Chilled Process Water – Technical Food Client

A globally recognised sports and nutrition food manufacturer, Science in Sport, built a new manufacturing facility in the UK. CSS Renewables were selected to supply a number of packages to deliver a world class facility.

Isotonic sports gels are a key product line for the company and the newly built factory invested in state-of-the-art equipment supplied by ProXES Gmbh.

SIS Plc.

Science in Sport PLC is a world-leading premium performance nutrition company. Both of our brands, PhD and SiS, were founded in the UK, and we’re proud of our heritage.

Opening in 2022, Blackburn is our Manufacturing and Logistics hub and has the capacity to grow the business to £200 million annual revenue. 

CSS Renewables won the contract to supply the Boiler system, site water systems, washrooms and ventilation packages.

JJC Waste Management

JC Waste Management are a leading waste operator in Cumbria and has a deserved reputation in the Furness Peninsula for excellent service. The company has expanded and needs to take over 50,000 tonnes of waste, following full recycling of useful materials, which cannot be recovered to landfill. The return journey is over 200 miles, much of which on quiet Cumbria roads, with the return journey empty and commercially expensive. The client asked us to run the project from planning application through to project delivery.