Solar energy is converted for use by a photovoltaic (PV) system, such as solar panels, which work best in full sunlight. If you want to use solar energy on a slightly overcast day, you will probably only get half the power that is generated on a sunny day. If the sky is dark with heavy clouds, a PV system might only be able to produce ten percent of your energy needs. That is why a back-up battery is needed for your system, to store the energy for those days when it is simply too overcast to depend on solar power alone for your home.
If your PV system is connected to a power grid, then the utility company will provide the balance of energy needed if it is not a clear, sunny day, in order to keep your system fully functioning, but if you are off-grid, then you will need a backup battery or generator in order to have sufficient power. It is a compromise, but with a battery, at least you can still enjoy the benefits of solar power, depending on the weather.
Solar energy production depends on sunlight, not heat, so cold weather should not affect your system. However, if you live in a city or country where cloudy days are the norm, you might not be able to use solar power panels or other equipment that must be placed in direct sunlight for optimum use.
With regard to solar water heaters, one of the best types of solar heater you can buy is a thermosyphon solar water heater, which uses collectors placed under the heater tank. An evacuated tube collector, which has vacuum tubes inside is a very efficient type of collector, especially in cooler climates. The main advantage to using this collector is that the water is heated to higher temperatures than other kinds, and they also function better than other collectors in cloudy weather.
Until solar energy technology advances to the level where solar power can be created and stored in sufficient amounts regardless of the weather, consumers will have to make the best of the present situation.
August 30th, 2011 in
Solar Power |
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We live in a time when the environment and therefore the economy are regularly in the news. So how are they related and how do they affect our lives?
Whether or not you believe the global warming theories or not we all wish quality of living for a cheap cost. None of us wish to exist with controlled power cuts or extortionate priced fuel. These might appear like distant threats, however if the gas supplies run out it’s a probable short term solution.
Harnessing the weather to give us sustainable cheaper fuels has got to be the wise long term resolution, because the wind and the sun are not about to run out on us. It is additionally the globally backed solution, so dive on the band wagon and get moving whilst the grants are still available.
Below are three reasons why it is now cheaper than ever to put in sustainable energy supplies without the solar panel price breaking the budget.
1. Cheaper silicon. Solar panels are made with polysilicon and the increase in silicon supplies means that these have simply got cheaper. Like most manufactured goods, the retail value is governed by the price of the constituent parts.
2. Governments backing green. Green could be a vote winner, thus you can be positive that every government will make an attempt to keep this sector of the voters happy. Entrepreneurs can be trying to capitalize on the budget made obtainable by the govt to setup solar energy advice centres. These advice centers are the perfect place to check the solar panel price and installation costs.
3. Increased demand. With the present push to convert to solar the bigger demand will mean that offers will be offered and prices will be more competitive. It’s an investors market at the moment.
You don’t need to be environmentally obsessed to perceive that with a little investment you may significantly bring down your financial outgoings.
There are plenty of different areas to research before getting carried away at the solar panel price and ordering an immediate installation. Firstly, look at the grants out there in your area. In a number of instances these are so great that they nearly entirely cover the installation costs. Be positive to check the information fastidiously as there might be necessities which you need to meet so as to be eligible for the grant.
Find out more about the Solar Panel Price at Talk Solar Energy