As part of the conversion of an off-grid barn into a holiday let, the owner sought a low-carbon, energy-efficient heating solution to minimise both running costs and environmental impact.
Global Energy Systems installed a 15kW air source heat pump, complemented by 20 solar PV panels, creating an integrated heat and power system. This combination enables the property to generate enough electricity to offset the majority of it’s heating demand for much of the year.
Compared to a traditional oil-based system – estimated to cost over £2,500 annually – this renewable solution delivers significant savings while dramatically reducing carbon emissions.
This project demonstrates how combining heat pump technology with on-site renewable generation can provide an effective, sustainable solution for off-grid properties, offering both environmental benefits and long-term cost efficiency.
When developing this new-build luxury holiday let, the cost of extending a mains gas supply led the owners to seek an alternative, more sustainable solution. They partnered with Global Energy Systems to install a 15kW air source heat pump, providing both heating and domestic hot water via a radiator system.
The system delivers efficient, low-carbon heating with running costs comparable to mains gas – recorded at £924 annually (2014) – while achieving an estimated 10–15% reduction in carbon emissions and avoiding the significant expense of a new gas connection.
In addition, the on-site hot tub is powered by a 9kW London air source heat pump, capable of handling full water refills between guest changeovers and operating year-round. With annual running costs of £404 (2014), the system offers similar cost efficiency to gas while delivering a potential carbon saving of over 3 tonnes.
This integrated approach provides a simple, efficient, and fully electric energy solution, combining strong environmental performance with reliable comfort for guests.
Following the successful installation of Global Energy Systems air source heat pumps across their accommodation properties, Ribby Hall Holiday Village selected the same trusted technology for the heating of their renovated sports hall.
Global Energy Systems designed and installed a system featuring one air source heat pump in a bi-valent configuration with a gas boiler, ensuring reliable and efficient performance year-round. The system provides heat to the badminton hall via fan convectors, while underfloor heating serves the adjoining studio spaces.
The installation has successfully maintained comfortable temperatures throughout the winter months, supporting both performance and visitor experience. In addition, the system is accredited under the non-domestic Renewable Heat Incentive (RHI), enabling the site to receive financial payments over a 20-year period.
This project highlights how a well-designed hybrid heat pump system can deliver efficient, reliable heating for large leisure facilities while offering long-term financial and environmental benefits.
Global Energy Systems replaced a faulty air source heat pump at Embleys Nurseries Café after the original manufacturer ceased trading, leaving the owner without ongoing support or maintenance.
A new Caernarfon air source heat pump was supplied and installed to provide reliable heating for the café along with hot water for the kitchen. The system was designed to restore efficiency and ensure dependable day-to-day operation.
Since installation, the owner benefits from both improved system performance and the reassurance of ongoing support from Global Energy Systems. The installation has also been accredited under the Renewable Heat Incentive (RHI), providing financial payments over a 20-year period.
This project highlights the importance of reliable system support, as well as the advantages of upgrading to a trusted, efficient heating solution.
As part of a self-build barn conversion, the owner sought an efficient and cost-effective solution to minimise heating and hot water expenses.
Global Energy Systems installed an 18kW Caernarfon air source heat pump, providing a complete, standalone solution for both heating and domestic hot water throughout the property.
The system delivers reliable, low-carbon performance while maintaining low running costs, offering an efficient alternative to traditional heating methods.
This project highlights how air source heat pumps can provide a practical, sustainable solution for self-build and barn conversion projects, combining energy efficiency with long-term cost savings.
This 185m² new-build property, located off the mains gas grid, required an efficient and future-proof heating solution as an alternative to oil or LPG.
Global Energy Systems installed an air source heat pump to provide full heating and domestic hot water, eliminating reliance on fossil fuels and protecting the homeowner from rising energy costs.
The property benefits from underfloor heating throughout, enabling the system to operate at low flow temperatures and achieve excellent efficiency. The heat pump is fully integrated with the UFH controls and optimised using Global Energy Systems’ software to ensure efficient, responsive performance.
Even during extreme weather conditions, with temperatures as low as -13°C, the system maintained a comfortable indoor environment. During peak demand, the heat pump’s built-in booster heater provides additional support to ensure consistent heating throughout the property.
This project demonstrates how combining underfloor heating with heat pump technology can deliver a highly efficient, reliable, and cost-effective solution for modern off-grid homes.
Set in rural Lancashire with no access to mains gas, the owners of this farm house wanted to escape their dependence on oil.The installation of a Global Energy Heat Pump has reduced their annual heating and hot water bill to £912, with a saving of £1026.
The Air Source Heat Pump has been installed at the rear of an open garage with the cold air being ducted out through the roof. This allowed the secluded rear garden and flower beds to remain undisturbed and offered a simple link into the existing heating system through the house wall. Several radiators in the house were upgraded to ensure all rooms were able to reach the desired temperature using a heat pump.
The owners have commented that they have been delighted with the savings.
This rural new-build property was constructed to meet Code for Sustainable Homes Level 3, with the inclusion of an air source heat pump playing a key role in achieving the required standards.
Global Energy Systems provided a solution to deliver both heating and domestic hot water, utilising underfloor heating throughout the property. This allows the system to operate at low flow temperatures, maximising efficiency and delivering some of the lowest possible running costs.
Once occupied, the property is predicted to achieve annual running costs of approximately £1,680, representing a potential saving of over £1,300 compared to oil heating.
The developer commented: “Being able to offer customers such low heating bills compared to the cost of oil is a real bonus.”
This project highlights how air source heat pumps can support sustainable building standards while delivering long-term cost savings and energy efficiency.
Following the breakdown of the existing oil boiler, the owners of this Derbyshire barn conversion sought a low-maintenance, cost-effective alternative to traditional heating.
Global Energy Systems installed an 18kW Caernarfon air source heat pump, providing a complete solution for both heating and domestic hot water throughout the property.
The system delivers reliable, energy-efficient performance while reducing running costs and eliminating the need for oil, offering a more sustainable and future-proof heating solution.
This large manor property in Lancashire was originally heated by a standalone oil boiler, with domestic hot water provided via a separate immersion heater. Following a recent renovation and increased occupancy, demand for heating and hot water rose significantly, resulting in annual running costs exceeding £4,000.
To improve efficiency and reduce reliance on oil, Global Energy Systems designed and installed a bi-valent heating system, integrating an air source heat pump with the existing oil boiler.
The heat pump now acts as the primary heat source, providing both heating and domestic hot water, effectively eliminating the need for the immersion heater. It is capable of meeting the property’s full demand down to -3.2°C external temperatures. During colder periods or peak demand, the original oil boiler provides additional support, ensuring consistent performance.
The entire system is managed using Global Energy Systems’ proprietary control software, enabling seamless switching between energy sources and optimising efficiency throughout the year.
This solution has significantly reduced oil consumption, improved system performance, and delivered a more cost-effective and sustainable heating approach for a large residential property.