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With considerable experience of low energy, zero carbon and carbon positive housing projects we have worked with many of the leading providers of low carbon and renewable technology systems. 

These technologies include phase change material (PCM), thermal stores, geothermal heating and cooling, river water heating and cooling to the UK's first solar inter-seasonal underground storage system


Geothermal Heat Pumps

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Geothermal Heatpumps

Design and specification of horizontal loop, vertical bore, water source and open loop heat pumps for both heating and cooling applications. Flow temperature selection,  control and ground thermal capacity analysis is taken into account when designing these systems, which can offer significant carbon savings when designed and commissioned correctly.

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Fuel Cells

Fuel Cells

Design and specification of Fuel cells which operate as micro-CHP, ideal for buildings that have a year round high hot water demand, as these units generate electricity as a by-product.

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EV Charging

EV Charging

Design and specification of EV charging systems including power demand load assessments, diversity calculations, infrastructure design, cable ducting, metering and payment systems.

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Biomass Boilers

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Biomass Boilers

Design and specification of wood pellet, wood chip, Log gasification and hybrid biomass boilers including fuel transfer and fuel storage systems and CO2 monitoring where required.

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Photovoltaic Arrays

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PV Arrays

Design and specification of PV arrays, both building mounted and ground arrays. Roof integrated systems for new build, on-roof systems and ground mount systems. Our digital engineering team have assisted planning applications for ground mount systems too.

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PV Battery Storage

PV Battery Storage

Sizing, specification and optimising payback for battery storage. Battery storage can improve the payback period for a PV installation when the base demand is below the peak output of the array.


Solar Collectors

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Solar Collectors

Solar thermal collectors are highly efficient, and capture more energy per m2 than solar PV systems. Solar collectors are ideal where a summertime heat load is available either for heating (such as swimming pools) or for high hot water demand (such as leisure centres, hotels or industry).




Water boreholes can provide water for extraction or water for open loop heating and cooling systems. Geothermal boreholes provide a heat transfer medium to enable heat pumps to reject or extract heat from the ground which is used as a heat sink, or energy store


Geothermal Storage

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Geothermal Storage

The concept of capturing heat energy from the sun during the summer months, and storing for use in the winter months is simple to understand, but difficult to realise.



Solar Thermal Batteries

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Solar Thermal Batteries

Under utilised technology that works in a similar manner to PV batteries capturing surplus PV energy prior to export. Solar thermal batteries store this energy in a phase-change material as heat, within a super insulated enclosure. The store replaces the need for  hot water storage, and provide instantaneous hot water at 55 degrees on demand, all heated via energy that would otherwise have been exported.


Heat Blades

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Heat Blades

Heat blades are used as an alternative heat transfer medium for heat pumps, ideal when a flowing water course is available, where extraction is not possible or not desired. The heat blades offer improved performance over air source heat pumps due to the increased thermal capacity of water over air.

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MVHR (Mechanical Ventilation with Heat Recovery) systems remove stale and contaminated air from buildings and replace with clean filtered fresh air, whilst recovering up to 90% of the heat energy that would otherwise be rejection to atmosphere with a conventional extract system

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