greentomatoenergy designs low energy buildings, conducts energy surveys and installs solar panels. Our services also include: working for a clean energy future, about us, frequently asked questions, generate, save energy, build, Work with us, privacy, Solar case studies, contact us, your home, your business, your community, large scale developments, installers, values, environmental policy, environment, credentials, greentomatogroup, press, solar thermal, solar pv, wind energy, air source heat pumps, ground source heat pumps, consultancy, ventilation and heat recovery, insulation, windows, money matters, water, new build, what is passivhaus?, retrofit, techy stuff, is solar thermal for you?, money matters, why greentomatoenergy, techy stuff, is solar pv for you?, is an air source heat pump for you?, techy stuff, why greentomatoenergy?, money matters, money matters, why greentomatoenergy?, techy stuff, Is a ground source heat pump for you?, why greentomatoenergy?, techy stuff, is consultancy right for you?, why greentomatoenergy?, techy stuff, is mvhr right for you?, why greentomatoenergy?, techy stuff, is insulation right for you?, why greentomatoenergy?, techy stuff, is double-glazing for you?, why greentomatoenergy?, techy stuff, is water conservation for you?, feedback, solar pv questionnaire, solar thermal questionnaire, installers questionnaire, website terms & conditions, terms and conditions of sale, meet the team, Energy Company PV Registration Forms, consultancy case studies, greentomatocars brings free wifi to London, Win some LED lightbulbs

large scale developments

greentomatoenergy provides a comprehensive service for large scale installations

greentomatoenergy provides a comprehensive service for large scale installations

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greentomatoenergy  develops clean energy solutions for  mid-to-large scale businesses and large scale developments to ensure the best possible return on investment for clients.

We will oversee the entire installation, including ongoing maintenance, to ensure that any risk and disruption to business operations is minimised. This keeps our clients free to continue their normal business activities.

Our strong network of specialists enables us to assemble the most appropriate project team, whatever the size of the project, always managed by greentomatoenergy.

We also offer innovative financing solutions for developments on this scale.

Typical characteristics of a large scale development are buildings with at least 10,000m2  of available space (i.e. roof space, car park etc.), high and volatile utility bills and a strong balance sheet

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Click on the links below or contact us to find out more.

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My boiler is 90% efficient; there is almost no room for improvement.

Truth: A “heat pump” can produce 4... read more

My boiler is 90% efficient; there is almost no room for improvement.


Truth: A “heat pump” can produce 4 units of heat for every unit of electrical input. Thus by a conventional definition it is 400% efficient, a big improvement on your boiler! (To avoid confusion, a different measure of efficiency called the Coefficient of Performance, or CoP, is used in heat pumps).


However, the really large fuel bill savings will come from insulating, airtighting and replacing windows in a house to mean that the boiler (or heat pump) does not have to produce so much energy in the first place.

greentomatoenergy can help you with: working for a clean energy future, about us, frequently asked questions, generate, save energy, build, Work with us, privacy, Solar case studies, contact us, your home, your business, your community, large scale developments, installers, values, environmental policy, environment, credentials, greentomatogroup, press, solar thermal, solar pv, wind energy, air source heat pumps, ground source heat pumps, consultancy, ventilation and heat recovery, insulation, windows, money matters, water, new build, what is passivhaus?, retrofit, techy stuff, is solar thermal for you?, money matters, why greentomatoenergy, techy stuff, is solar pv for you?, is an air source heat pump for you?, techy stuff, why greentomatoenergy?, money matters, money matters, why greentomatoenergy?, techy stuff, Is a ground source heat pump for you?, why greentomatoenergy?, techy stuff, is consultancy right for you?, why greentomatoenergy?, techy stuff, is mvhr right for you?, why greentomatoenergy?, techy stuff, is insulation right for you?, why greentomatoenergy?, techy stuff, is double-glazing for you?, why greentomatoenergy?, techy stuff, is water conservation for you?, feedback, solar pv questionnaire, solar thermal questionnaire, installers questionnaire, website terms & conditions, terms and conditions of sale, meet the team, Energy Company PV Registration Forms, consultancy case studies, greentomatocars brings free wifi to London, Win some LED lightbulbs