sustainable design

GLP collaborate with the design team on any given project and advise on the most energy efficient and sustainable mechanical/electrical equipment and technologies on the market.

With GLP being both CIBSE accredited low carbon consultants for design and operation and licensed BREEAM assessors provides an excellent base knowledge of cutting edge sustainable product awareness and design requirements.

GLP can provide a feasibility study for low zero carbon technologies (LZC) and advise on suitability, energy efficiency, emissions, life cycle, available grants and commercial payback.

The types of available LZC GLP can provide detailed feasibility and advise are as listed:-


  • Solar hot water
  • Photovoltaics


  • Small scale hydro power
  • Tidal power
  • Wave power


  • Wind turbines


  • Biomass single room heaters/stoves
  • Biomass boilers
  • Biomass community heating scheme
  • Combined Heat and Power (CHP) for use with the following fuels:
  • Biomass
  • Natural gas
  • Sewerage gas and other biogases

CHP systems must meet the threshold criteria for good quality CHP as set by DEFRA’s CHPQA programme.

Community heating, including utilising waste heat from processes such as large scale power generator where the majority of heating comes from waste heat (see also Compliance Notes below).

Heat Pumps

  • Ground source heat pumps
  • Water source heat pumps
  • Geothermal heating systems
  • Air source heat pumps

For heat pumps to comply, the heat source (ground or water) must be from a renewable source, for example soil, outside air, ground water or a river.


  • Fuel cells using hydrogen generated from any of the above ‘renewable’ sources.