unit 103
how much power does an energy efficient light bulb use compared to a conventional light bulb.
30%
how much electricity is used when leaving electrical appliances on standby and how much does it cost on average per year.
5-10%. £80
give an example of a 0 carbon emmision source
hydroelectric
give an example of a low carbon emision source
solar power
give an exapmle of a high carbon emmission source
nuclear power station
what is biomass
uses plant and animal matter to create energy by burning it.
what are heat pumps
machine that either heats or cools a building by trensferrng heat from the ground on the air.
what are photons
particles of light from the sun
what are the names of the two trusts for energy and carbon
enrgy saving trust and carbon trust
what is an inverter
a device that changes driect current to alternating current.
what does GSHP stand for
Ground Source Heat Pump
what does ASHP
Air Source Heat Pump
what do you need if you carry waste in your van
waste carriers license
what does WEEE stand for
waste electrical and electronic equipment
why is plasterboard disposed of separately
because it contains gypsym which can produce hydrogen sulphide when mixed with biodegradeable waste.
why do we measure twice and cut once
to save materials so less is wasted.