GreeningHorsham

  • Increase font size
  • Default font size
  • Decrease font size

Energy Monitors

E-mail Print PDF

 

Energy Monitors

Do you know which appliances in your home or office use the most energy? Energy monitors can help you find out.

Energy monitors show you in real-time how much electricity your home is using, when you turn on a light or other electrical appliance they display shows the change in load. Many energy monitors also show the cost of electricity being used.

Energy monitors range from devices which plug in and monitor a single lamp or appliance – good for really working out how much electricity your TV uses, for example – to those which connect to a computer and allow you to see graphically how much energy you've been using.

Energy Monitor Log of Oven

The chart shows how much electricity was used while baking bread – you can see how the oven uses a lot of energy as it heats up and then the thermostat turns the electricity on and off to keep the oven at the right temperature. The two big spikes show when a kettle was used while the bread was baking.

It's been estimated that almost £1 billion is wasted each year by leaving appliances on when they're not being used and energy monitors can help reduce this.

 

Last Updated on Wednesday, 31 August 2011 14:54  

News from the Eco Fair

 

Biomass

Biomass systems create heat by burning wood or straw, or by processing food- or farm waste to create biogas which can then be burned or used a fuel for a generator to create electricity.

Systems which burn wood vary from open fires burning logs, through log burning stoves and boilers, to systems which burn wood chips or pellets either for heat or to power a generator. They can heat a single room or provide both heat and electricity for a community.

Food and farm wastes are used in an anaerobic digestion process which creates biogas and a fertiliser. The biogas can be burned or used to run a generator, or it can be processed further and put into the gas grid.

Heat Pumps

Heat pumps work in the same way as a refrigerator. Just as your fridge or freezer pumps heat from inside the fridge out to the room in order to cool your food or ice cream, then a heat pump works by pumping heat from the ground or air into your house to keep it warm.

Air-source heat pumps take heat from the air around a building, working rather like air conditioners running backwards.

Ground-source heat pumps rely on the ground temperature below 2m depth being more or less constant all year. You do need either a series of very deep boreholes or a large area to collect heat from.