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Welcome to Harp Renewables.

Innovating the Future of Organic Waste Management.

Born from a unique blend of electrical engineering and biotechnology, Harp Renewables is backed by over 20 years of global experience in managing organic waste and designing sustainable treatment solutions. Today, we are recognized worldwide for our leadership in thermophilic aerobic digestion and high-performance waste-conversion technologies.

Our advanced Harp Biodigesters transform food and other organic waste into a clean, safe, nutrient-rich bio-fertilizer in just 24 hours, reducing waste volume by up to 85% and eliminating the need for costly, carbon-intensive disposal methods.

Fast, clean, and environmentally responsible, Harp Renewables delivers smarter, scalable solutions that help organizations cut emissions, reduce operating costs, and turn waste into real value.

DIGESTERS CURRENTLY ACTIVE

TONS OF WASTE DIVERTED FROM LANDFILL

TONS OF GREENHOUSE GAS EMISSIONS SAVED

Harp Biodigester Range

 

Who we work with

''Delighted''

“We haven’t sent any waste offsite since we installed the bio-digester in December, The bio-digester makes people think a bit more about what they are doing and keeps everyone focused on ‘green’ ways to process waste. The process has been embraced by our tenants and has got them thinking more about waste segregation. They now unpackage their sent produce.

As a result, not only are there no contaminated bins coming through, but we are creating added revenue by bailing our plastic. In preparation for a return to normal operations, we look forward to installing a second Harp – bio digester.

We are delighted with this initiative which directly feeds into our People Planet Sustainable Strategy”

– Michael Farrell, Estate Manager at Captial Dock Aramark Properties.

''Ideal Solution''

“Our customers are delighted that they now have a solution for food waste and are not contributing to unnecessary environmental damage caused by sending the organic matter to landfill. Harp Renewables has been hugely helpful and very responsive to any questions we have had, particularly in the early days while everyone was getting used to using the bio-digester.

There has also been a lot of interest in the bio-digester from other Local Authorities and the DCCAE.

It would be an ideal solution to any organisation with excess food waste and I would have no hesitation in recommending Harp Renewables to any interested party.”

 – Bernadine Carry, Environmental Awareness Officer at Meath County Council shares

''Great Educational Tool''

“We invested in a Harp CX5 Bio-Digester with a bespoke integrated biomass boiler as a solution to our waste costs. We are saving around £11,000 annually now.

With this solution we are also able to use the biomass boiler to heat out facilities which in turn dramatically reduces our heating’s C02 emissioons. All the excess digestate is then used as an organic fertilizer in our on-site greenhouses.

This is a great educational tool to teach all the students about sustainability so thatin the future, students are interested and determined to make this world a greener more environmentally friendly place to live.”

– Penair School

Our latest news

 

How the ESD Grant Empowers School Sustainability Projects

How the ESD Grant Empowers School Sustainability Projects

Make Your School a Hub for Sustainable Learning with the Harp Home Composter Schools across Ireland can now take advantage of the Education for Sustainable Development (ESD) Grant, receiving €1,000–€2,500 to introduce projects that teach sustainability while reducing...

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Circular Farming in Focus at Harp Farm Walk

Circular Farming in Focus at Harp Farm Walk

Harp Renewables Hosts Educational Farm Walk on Recycled Derived Fertiliser (RDFs) On Tuesday 1st of July, we held our Recycling-Derived Fertiliser Farm Walk, hosted on the 8-acre winter wheat field generously provided by local farmer Louis McAuley. The event marked a...

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