5 Suggested Ways to Create Renewable Energy for Buildings On Site
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For some years now planning and development agencies in most developed countries have been progressively increasing the energy efficiency requirements for all new property. However, the energy efficiency path begins to run out now. This is because beyond a certain point the costs of things like added insulation tend to go up without a correspondingly large reduction in the power used. The solution is to require active creation of power sources on each site, and although this might seem unachievable at first, it really can be done.
London is one of the first cities to require all new buildings to make some
of their own renewable power. so this is a really topical subject and not theoretical
at all, in view of this new energy requirement.
The following are our suggestions of five possible technologies which might
be used to sustainably power buildings in cities in this way:
Solar Panels
The solar power cell has been around for some time, but will be increasingly
used on our city buildings.
Mini Wind-Turbines
We have nearly all of us seen large wind farms, and now there will be the possibility
of their small cousins being seen much more frequently in our cities. However,
a windmill can only provide enough power to pay for its initial cost and upkeep
if there is enough wind, and for many low and medium rise developments there
simply will not be enough wind.
Utilizing Waste
Yes! Surprising as it may seem, the waste from quite a few buildings will be
usefully put to use to release its heat and this will power generators which
will supply electricity back into the building. This will have great `win-win`
effect, as the waste combusted or fermented to power the building will not have
to be transported to a landfill, saving both on road congestion, and on the
use of more fuel.
Exchange Heat Energy Between Warm Air Going and Cool Air Being Brought
In
When you have warm air going outward and you are sucking replacement cold air
in it makes sense to pre-warm the cold air by using a radiator so that the warm
air can pass its heat energy to the cold air across a heat exchanger. When then
heated to room temperature the cold air is warmer than it would have been, and
energy saving is the result - or energy regeneration. The heat energy is re-used
so it might be considered a power efficiency measure as well. However, this
is a very simple method of re-using heat in winter. Not only can this technique
be applied to the air conditioning system, it can also be applied to outgoing
warm water before it is discharged to the sewer.
Regenerate Power at Water Main Pressure Reduction Points
To achieve a detailed explanation of the re-use of water distribution mains
derived energy is complex and not possible here. However, the end result is
electrical power which is automatically recycled using a small generator placed
in the water main at the Pressure Reduction Valving points in a water main.
This list illustrates that what at first seems improbable, or even impossible can actually be achieved, and we have more information about renewable energy at the Renewable Energy News.
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