Renewable Energy Sources
Solar and wind can supply most of the electrical power required, and the amount of electrical power required can be calculated well in advance using a spreadsheet supplied from the Internet or by getting a local renewable energy contractor to give you an estimate. You will also need to decide if you want to export any excess power to the grid as it takes a while to set up a contract. However this gives you the option of falling back on grid power if required, otherwise you may need a standby diesel generator.
You should use no more than 10 - 14kWh of electricity per day so use this as a starting point in choosing the capacity of your generating system
Domestic wind turbines can deliver this, but remember to get a wind survey taken before doing anything else. Some local government services and Internet sites can supply this information by postcode, which can be used in the first instance.
I can recommend a Proven wind turbine of 2.5 kW output which can supply electrical power to the house at an initial cost of £7000 installed. This will include batteries and all electrical converters, remember to allow space for the batteries and controllers and a location clear from obstructions for the wind turbine.
These are popular nowadays for supplying power to garden lights etc, but the domestic PV panels required to produce the power you will need are still very expensive, however payback time is said to average 4 years. I am awaiting a quote from a local firm for a set of roof PV panels for our bungalow.
Get a weight figure for the panels afore making any decisions and run it by your architect as green houses are not all great weight-bearers and remember; these panels go on your roof!
The latest wood burning stoves can provide heat for cooking, domestic water and, run the central heating radiators
A good wood burning stove is the tried and tested Rayburn, which will allow cooking as well as water heating. We had one for a few years when we lived in the Western Highlands. I loved it, except cleaning it out and lighting it every morning before going to work, especially on a Sunday morning waiting for our usual fry up breakfast, my tummy was fair rumbling, ah well happy days when this was all we had to worry about. I am assured new models do not need such frequent attention and burn most biomass so these should be investigated.
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