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EREK database of resource efficiency

Measures, Technologies and Good Practices

Do you want to know how much different measures and technological solutions would cost and how much money and resources they can save for your business? This database offers such data in a concise and comprehensive format.

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Technology

Ground and water source heat pumps

A great introduction to ground and water source heat pumps Ground and water source heat pumps (GSHP) are easy to run once installed and provide low-carbon heating or cooling. Average reduction in CO2...
Sector / Industry:
  • All sectors
Resources:
  • Energy
Costs, savings, and payback time: High cost 10 Year(s)
Technology

Pipework insulation

Insulating the pipework and valves of a hot-water and heating systems could help cut heat loss or heat gain by up to 90 %. In one or two years, the investment could be recovered, and savings made....
Sector / Industry:
  • All sectors
Resources:
  • Energy
Costs, savings, and payback time: Medium cost 0.2 Year(s)
Technology

Biomass heating

Biomass heating is a proven technology which most commonly uses virgin wood, certain energy crops, industrial wood residues and certain agricultural residues to produce heat. Biomass is considered a...
Sector / Industry:
  • All sectors
Resources:
  • Energy
Costs, savings, and payback time: High cost 2.5 Year(s)
Technology

Flash-steam heat recovery

Flash steam released from hot condensate can be recovered and applied elsewhere in the plant to maximise overall efficiency. Recovery systems reduce steam-raising costs, utility bills and CO2...
Sector / Industry:
  • All sectors
Resources:
  • Energy
Costs, savings, and payback time: High cost 3.4 Year(s)
Technology

Condensate return

The return of the condensate Steam condensate is a well-known by-product of many industries. What is less well known is that it can be a powerful source of heat that can be reused. Using this end-of-...
Sector / Industry:
  • All sectors
Resources:
  • Energy
Costs, savings, and payback time: High cost 8.3 Year(s)
Technology

Economisers

Economisers are gas-to-water heat exchangers located within a purpose-built flue section. They are used to recover heat from flue gasses for shell and water-tube boilers. The main use of economisers...
Sector / Industry:
  • All sectors
Resources:
  • Energy
Costs, savings, and payback time: High cost 24.5 Year(s)
Technology

Blowdown heat recovery

On a daily or weekly basis, steam boilers blow down hot water from the boiler to avoid the formation of sludge. Blowdown heat systems can recover much of this waste heat and reuse it. The system is...
Sector / Industry:
  • All sectors
Resources:
  • Energy
Costs, savings, and payback time: High cost 8.2 Year(s)
Technology

Energy saving in boiler performance - burner fuel...

Case for dual burners Installation of dual fuel burners to replace heavy oil burners, with the aim of increasing fuel-heat effectiveness and avoiding radiation heat loss, among others. Steam and high...
Sector / Industry:
  • All sectors
Resources:
  • Energy
Costs, savings, and payback time: High cost 1.3 Year(s)
Technology

Seven-day time heating-control

According to the Carbon Trust, heating can account for as much as 60 % of total energy use, yet a large proportion of the energy consumed by heating is likely to be wasted due to incorrect control...
Sector / Industry:
  • All sectors
Resources:
  • Energy
Costs, savings, and payback time: Low cost 1.2 Year(s)
Technology

Weather compensation

According to the Carbon Trust, heating can account for as much as 60 % of total energy use, yet a large proportion of the energy consumed by heating is likely to be wasted due to incorrect control...
Sector / Industry:
  • All sectors
Resources:
  • Energy
Costs, savings, and payback time: Medium cost 1.8 Year(s)
Technology

Optimum start control

Optimum start controls vary the times that heating systems come on, depending on the weather, occupancy, and the current heat in the building. Using optimum start instead of fixed time control can...
Sector / Industry:
  • All sectors
Resources:
  • Energy
Costs, savings, and payback time: Medium cost 3.6 Year(s)
Technology

Heating decentralisation

Large, centralised, hot-water systems can often be inefficient. At times when demand for hot water decreases, a large system can waste energy and money. Equally, with decentralised systems it is...
Sector / Industry:
  • All sectors
Resources:
  • Energy
Costs, savings, and payback time: Low cost 4 Year(s)