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This is Energy on Clyde.

Hello, Glasgow.

We are Gren – a positively different energy company.

We are working with Glasgow to build secure, affordable and cleaner energy in the industrial heart of the city that will benefit local businesses, people and the community.

Building Heat Networks for the Future. Now.

We passionately believe that clean energy should be for everyone. 
And that it should be affordable.

Our approach will create heat that is reliable and secure from global market fluctuations.

We won’t do this alone.

You will see us working with others, collaborating and sharing to deliver for this city faster and better.

Want to learn more about affordable energy in Glasgow?

District Heating: A new type of energy system.

Minimising loss & saving customers’ money by thinking bigger to join up the dots.

Gren is innovating district energy in Glasgow.

At the heart of Energy on Clyde is a joint venture between Gren and Fortum to process material that would otherwise end up in landfill.

We distribute the energy created from this process through local networks of cables and hot water pipes that are connected to buildings, serving blocks of flats, hospitals, schools and industrial customers with reliable and affordable low carbon energy.

Closing the Loop

Let’s not throw energy away. Let’s use all of it and let’s use all of it in Glasgow. Our networks will ensure the energy we generate serves this city.

Impacting Communities

Our innovations in the energy system are all about impacting this city—delivering affordable clean energy so that Glasgow can thrive and prosper.


Resource Collaboration

Our energy networks are stronger when everyone moves together. The more people that move to this new network, the more cost-effective the energy will be, and the greater the benefits for Glasgow.

Why heat networks with Gren?

Gren is a convener in the energy industry.

We bring together business and government to innovate together. We help organisations reclaim lost heat, turning it into both an asset and a revenue stream.

Work with us

Working with us is easy.

It isn’t about us, it’s about US, together. Gren brings everyone in the community together to make sure we are all part of the journey. No ego. Just confident collaboration and collective action.

FAQs

What is Energy on Clyde?

Energy on Clyde is a new type of energy company established for Glasgow. The system includes power and district heating which will allow buildings in Glasgow to get access to heat and power in a new way.

Built by Gren, Energy on Clyde will harness lost heat from a number of renewable sources and deliver energy in a more efficient way. By doing this we make resilient and secure low carbon energy something that is affordable for everyone.

Gren is a Northern European energy company with a track record of operating similar energy systems for decades, set up in the UK 18 months ago. Glasgow is the first city we are working with in Scotland, and we are excited to bring our ingenuity and investment to bear in this great city.

Affordable

Compared to other low-carbon options?

The energy delivered by Energy on Clyde will be significantly cheaper compared to installing individual heat pumps.

The total bill paid by customers also includes all system maintenance, repair and replacement costs: if anything breaks, we replace it, creating access to more affordable energy in Glasgow.

Compared to fossil fuel heating systems?

Energy on Clyde will be price competitive with any heating system. Fossil fuel prices are extremely volatile, if they are really low, the heat from Energy on Clyde could be a little more expensive. As Energy on Clyde is not directly linked to international oil and gas markets, pricing is stable and predictable, giving you certainty and peace-of-mind and keeping the total cost of energy lower.

Easy

Connecting is simple and straightforward for customers. We don’t have complicated contracts. We don’t use lots of consultants to make it ‘bespoke’ when it really isn’t. Instead, we tell you what we are going to do, when we are going to do it, mapping out a really simple process for you to connect your buildings to the network.

Fast

Yes. We will connect as many buildings as possible to the network, moving as quickly as possible. And the more buildings that connect at the same time, the quicker we can go.

Compliant

Yes. Energy on Clyde will be compliant with existing and future Scottish Government regulations for heat networks and building regulations. In addition, the government and Glasgow City Council are developing ‘Heat Network Zones’ where heat networks will be preferred as a decarbonisation solution for heat and hot water in buildings. This area of Glasgow has already been identified as a great area for a Heat Network Zone.

Low Carbon

Energy on Clyde will utilise waste heat from a local state-of-the-art energy from waste facility. At this site, unwanted material is made safe, with electricity and heat generated as a by-product—a process recognised by the UK and Scottish Government’s as a low-carbon energy solution. All part of the Scottish Government’s strategy to stop using landfill.

 

Can I generate income?

Energy on Clyde could become an additional source of income for your business if you have spare capacity.

If you produce heat or need cooling, then there could be times when Gren pays you to add your energy to the Energy on Clyde network.

 

Do I have to retrofit my building completely to connect?

The water in network will be kept at a temperature which can work with all types and ages of buildings, so your retrofit costs will be much lower than with any other low-carbon solution (including heat pumps), which often require upgrades in the building’s heat distribution pipes and radiators. There may be no retrofit costs at all if we can tap our heat pipe into your building where your current boilers are.

 

How does pricing work?

It works the same way as a gas bill: a fixed charge element and a variable charge element. The fixed charge covers the cost of maintaining the system and replacing parts as the system ages. The variable charge element covers your consumption—so you only pay for what you use. The benefit of a heat network is that you don’t have a separate cost paid to ‘maintain your boiler’ as the total price you pay for heat includes all maintenance and repair costs. No sudden nasty surprises here.

 

When Can I join?

We will be connecting buildings to our network in 2026, and heat will be turned on in early 2027.

 

Can I Leave Energy on Clyde?

Yes. If Energy on Clyde no longer works for you, we will support your transition off the network.

Where does carbon capture fit in? 

The carbon impact of the recovered heat is negligible. While Gren carbon capture technology is a potential future solution that could further reduce emissions, our current focus is on maximising the low-carbon potential of our existing infrastructure. By using multiple sustainable energy sources, we are putting truly sustainable, best-in-class low-carbon energy infrastructure at the centre of Glasgow’s Net Zero future.

 

Will I be able to track the carbon content of my energy?

To ensure full transparency, Gren will provide detailed carbon calculations to each building connected to Energy on Clyde. The carbon calculations will take into account all sources of low-carbon heat powering the network. As the network grows and new low-carbon sources of heat are added into the network, Gren will provide updated carbon calculations for your building.

 

Community Consultation

Welcome to the Energy on Clyde online consultation, we are seeking feedback on the next phase of our proposed low-carbon district energy network in South Glasgow.

This pre-application public consultation relates to new pipes and cabling under Renfrew Road and up to Hospital Boulevard to serve the hospital, plus a back-up Energy Centre and supporting infrastructure.

Your views matter – please explore the exhibition boards and share your feedback via the link below:
https://www.surveymonkey.com/r/YYYRVNG

You can also share your views by email at: [email protected]

We will also be holding a second consultation event on 17th February at the Pearce Institute between 3-7pm.

Following the pre-application public consultation process, an application for planning permission will submitted in spring 2026. There will be the opportunity for interested parties to make formal comments on the proposals to the planning authority at that stage.

MPORTANT NOTE: Any comments made at this pre-application stage do not constitute formal representations to the planning authority and would not be considered as part of any future planning application. There will be further opportunity to make representations to Glasgow City Council following submission of the planning application. Please note that any data collected through your consultation feedback will only be used to help understand views regarding this major application for the section of pipe along Renfrew Road and the proposed Energy Centre. The data will not be used for any other purposes. The data will be collated and analysed to help in the reporting of consultation feedback.

 

Contact Gren about green energy.

When you work with Gren, the solution we’ll build together will ensure heat that is reliable and cost-effective, with guaranteed price stability.

Want to know more? We’d love to hear from you.

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