Harmonic | Waste Heat Marketplace

The Problem

The UK wastes enormous amounts of heat every day whilst simultaneously spending billions heating buildings, pools, and greenhouses. It's an inefficiency we can no longer afford—economically or environmentally.

50%

of UK energy is used for heating

~40%

of industrial energy becomes waste heat

18%

of UK carbon emissions from heating buildings

The Solution

Harmonic is the UK's first comprehensive marketplace connecting waste heat producers with heat consumers. Using graph network technology, we match supply with demand to create efficient, profitable, and sustainable heat exchanges.

For Heat Producers

Turn disposal costs into revenue. If you're cooling servers, running industrial processes, or generating power—your excess heat has value. We'll connect you with buyers.

For Heat Consumers

Reduce heating costs dramatically. If you're heating pools, offices, greenhouses, or residential buildings—we'll find you local, affordable heat sources.

Graph Network Matching

Our platform analyses temperature, volume, location, timing, and technical requirements to create optimal matches between producers and consumers.

Supply Meets Demand

Heat Producers

Data Centres
Manufacturing Facilities
Power Generation Plants
Industrial Processes
Commercial Refrigeration
Wastewater Treatment Plants
Food & Beverage Production
Server Farms

Heat Consumers

Swimming Pools & Leisure Centres
District Heating Networks
Greenhouses & Vertical Farms
Office Buildings
Residential Developments
Hospitals & Care Homes
Schools & Universities
Industrial Preheating

Environmental Impact

Every heat connection made on Harmonic directly reduces carbon emissions, supports net zero targets, and contributes to the UK's climate goals. Heat recovery is one of the most effective climate actions available.

Reduce Carbon Emissions

Waste heat recovery can reduce heating-related emissions by up to 80% compared to gas boilers, making an immediate impact on climate goals.

Support Net Zero

The UK government's heat network zoning strategy recognises waste heat as critical to achieving net zero by 2050.

Cut Energy Costs

Organisations reduce heating bills whilst producers monetise previously wasted energy—creating mutual economic benefit.

Local Solutions

Connecting nearby producers and consumers reduces transport emissions and creates resilient local energy systems.

Example Connections

Data Centre to Swimming Pool

Connect server cooling systems from data centres to public swimming pools, leisure centres, or aquatic facilities requiring consistent heating.

Impact: Up to 70% reduction in pool heating costs

Industrial Facility to District Heating

Route process heat from manufacturing to municipal district heating networks serving residential and commercial buildings.

Impact: Reduced carbon emissions equivalent to thousands of homes

Power Plant to Greenhouse

Match power generation waste heat with commercial greenhouses and vertical farms requiring year-round climate control.

Impact: Enables local food production with minimal energy cost

Server Farm to Office Building

Connect server room cooling to office building heating systems in the same business park or nearby locations.

Impact: Near-zero heating costs for office spaces

Supermarket to Care Home

Utilise refrigeration waste heat from supermarkets to heat nearby care homes, hospitals, or residential facilities.

Impact: Reliable heat supply with significant cost savings

Brewery to Community Centre

Match fermentation and brewing process heat with community centres, schools, or public buildings requiring heating.

Impact: Community facilities reduce heating bills whilst supporting local business

How It Works

Register Your Heat

Producers and consumers register their heat profiles—temperature, volume, location, and timing requirements.

Intelligent Matching

Our graph network analyses all registered profiles to identify optimal matches based on technical and logistical factors.

Verification & Connection

We verify compatibility, conduct feasibility assessments, and facilitate connections between matched parties.

Ongoing Optimisation

The platform continuously monitors and optimises heat exchanges, ensuring maximum efficiency and reliability.

Frequently Asked Questions

What is Harmonic?

Harmonic is the UK's first comprehensive marketplace for waste heat. We use graph network technology to connect organisations producing excess heat with those who need heating, creating profitable and sustainable heat exchanges.

What types of heat can be traded?

Any excess heat from industrial processes, data centres, power generation, refrigeration, or other sources. Temperature requirements range from low-grade heat (suitable for underfloor heating) to high-grade heat (for industrial preheating or hot water).

Is infrastructure required?

Yes, heat networks require pipes and heat exchangers. Harmonic connects parties and verifies feasibility—infrastructure costs depend on distance and capacity. We can facilitate connections to planning and financing resources.

How far can heat be transported?

Economically, typically within 2-5 kilometres, though district heating networks can extend further. Our platform prioritises geographically close matches to minimise heat loss and infrastructure costs.

What about supply reliability?

This is assessed during matching. Many industrial processes and data centres run continuously, providing reliable heat. For intermittent sources, we can match with facilities that have thermal storage or backup systems.

When will the platform launch?

Harmonic is currently in development. We're building partnerships with initial heat producers and consumers. Join our waitlist to be among the first onboarded when we launch.

Is my organisation too small?

No. Whether you're a small business with a server room or a major industrial facility, if you produce excess heat or need heating, we can help find matches.

How does this reduce carbon emissions?

Waste heat recovery eliminates the need to burn gas or use electricity for heating. Since heating accounts for 50% of UK energy use and 18% of emissions, heat recovery is one of the most impactful climate actions available.

The UK's Waste Heat Marketplace