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A Guide to Renewable Energy from Granted
Transcript of A Guide to Renewable Energy from Granted
Solar Photovoltaics, Micro CHP and Wind Turbines
Solar Thermal, Heatpumps, Biomass
Ground Source Heat Pumps
South Marston Parish Council
Renewable Energy Technologies Overview
Why Renewable Energy?
Figure 1.3 The energy gap created by UK power station closures, as projected by energy company EDF. This graph shows the predicted capacity of nuclear, coal, and oil power stations, in kilowatt-hours per day per person. The capacity is the maximum deliverable power of a source.
Generating heat is not always straight forwards...
Eucalyptus wood chip:
Grows reasonably fast
High resin levels
Relatively energy dense
Several meters down the temp of the earth is nearly a constant 11 degrees even in winter
this makes it theoretically a better place for a heat pump.
However the ground is not a limitless source of heat, if we remove it too fast we can create permafrost....
Global warming or not, the following statements are all true:
Coal, oil, gas and uranium are FINITE resources. Solar irradiation isn't (for the next few million years)
Energy demand is increasing as consumerism creates new global markets.
Energy independence is linked strongly to political independence
January 2010 the CEO of the National Grid voiced an expectation that;
"it is seven years till the lights go out"
20:50:00 GMTFrequency: 49.937Hz20:51:45 GMT
N.Ireland to Great Britain: -252MW
France to Great Britain: 994MW
Netherlands to GB: 994MW
30/09/2013 20:30:00 GMT
Scot - Eng: 1951MW
Does not just supply heat but also two thirds of the electricity requirements of an average four-person household
Gas fuel supply used for:
50% space heating
35% electrcity generating
15% inefficiency loss
Design of flow and return routes is very important, training is necessary!
lower energy input = higher efficiency
Air Source Heat Pumps
Can be more efficient than a combi or system boiler
Might be "a bit noisy"
Relatively easy to install
Still harvest heat even at low temperatures
Power used = Average temperature difference x leakiness of building
Efficiency of heating system
Bore holes can be expensive
Trench laid GSHP
The original biomass fuel system...
High efficiency burner with a back boiler
Manual feed pellet burner
Biomass: a renewable energy source comprised of biological material from living, or recently living organisms, such as wood, waste, (hydrogen) gas, and alcohol fuels.
Biomass is commonly plant matter grown to generate electricity or produce heat
The UK is a Net EXPORTER of wood fuel
Evacuated tube collector
Integrated flat plate collector
The Power Tower
Wind Top Tips...
Always get a wind survey for the site
Minimum 5meters per second average wind speed
Situate away from any buildings or trees preferably 100m
Planning will almost certainly be an issue!
Much more profitable than PV
Vertical axis better for disrupted air streams
A 98 kW Horizontal axis
unit installed in Penzance
The early days!
Aerodynamics meets hydro dynamics
A crucial step in delivering the UK’s energy security and low carbon future was taken today with the publication of the Government’s plans for the national rollout of smart meters.
Alongside the Government’s response to the Smart Meters Prospectus consultation, the Department of Energy and Climate Change has set out the overall strategy and timetable for the installation of 53 million smart meters in 30 million homes and businesses across Great Britain, estimated to have a net benefit to the nation of £7.3 billion over the next twenty years.
Yesterdays National Grid electrical activity at 9pm
Solar Hot Water