Solar Panels

September 11, 2008

can solar power panels installed at home provide enough electricity to power house hold appliances?

Filed under: solar power panels — admin @ 12:21 am

can solar power panels installed at home provide enough electricity to power house hold appliainces and heat water.

They can but it takes a lot of panels. A home averages about 1 kw power. Peak power is higher (3-6 kw) but you can handle that with load leveling storage batteries.

The total maximum solar flux is about 1 kw/square yard (or square meter). Solar panels are around 10% efficient. Because the Sun travels across the sky, the overall power is about 1/2 this maximum but then ony during the day (1/2 the time). Since you need to recharge your batteries for nighttime, etc. and battery charging is about 50% you lose abother factor of two.

So, assuming the Sun shines every day, you can power your house on 80 square yards (700 square feet of solar panels). This is still very rare because the investment in solar panels, batteries, converters, etc. far outweighs what you spend for commercial electricity.

September 3, 2008

Solar power panels

The gaining popularity of solar power panels has necessarily led to the appearance of all sorts of myths concerning the making of green electricity. The main topic was that the production of a solar panel as such will take more energy than it will ever put out. The myth appeared in the 70s and it triggered strenuous scientific efforts to corroborate or weakly it. A study conducted in the United States on the total of time necessary to reach a payback point by the use of the solar power panels discovered that it takes from five to ten years for the case of single-crystal systems.
More sophisticated solar power panels have a much decreased payback period; thus for polycrystalline panels, the investment is recovered withing Three to Five years, while with amorphous silicone the time lapse is cut to only two years at the maximum. The price for very effective solar power panels is unquestionably high, but the investment is considered worth making if you won’t have to bear electricity bills for the restof your life. Moreover, you’ll even get tax credits from the government; all you need to do is look for the information and the legal ground that support people who want to go solar.

Solar power panels are normally included in 48-volt systems, this is considered the standard and such a value replaces the former Twelve and Twenty-four volt-systems that were coupled in multiple panels to support the needs of home owners. What is the immediate result of higher voltage solar power panels?For one thing the efficiency is drastically increased and there are less line losses that actually make a difference for the matter. Some people prefer to put in controllers and sun trackers to maximize the use of the solar power panels, but sometimes you may in truth need an expert’s opinion in order to to make sure that you get the best choice for your home.

A very simple and rather cheap variant of solar power panels are the solar roof shingles. They are small-sized and meant to cover your entire house roof, or just the part facing south. They are very easy to set up and they use a very simple mounting and wiring system, which is why they are considered appropriate for virtually all budgets. For someone who cannot pay $54,000 for some ultra-sophisticated solar power panels, the solar roof shingles are a very handy solution.

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