Five things to look for when buying Solar Panels
Before you rush out and install solar panels in your home or workplace, there are some basic things you need to understand.
In simple terms, solar panels are built up from many solar cells which use light, generally from the sun, to produce electricity. We have seen solar cells used in every day gadgets for a while, a classic example is the humble desk top calculator. It uses light to produce and store electricity in a small battery. There are broadly speaking, 3 types of solar panels:
2- Poly crystalline Silicon
3- Thin Film
Solar Energy Check list
1/ Possibly the first people think of when going Solar Power is cost, after all, one of the attractions is to save money on electricity bills. Solar units can be quite costly to begin with, but over time the savings from the National Grid offset the purchase costs. Panel prices are calculated by the amount of electricity they produce, so one that produces more power is more expensive than a lower output model. However, be aware of other “hidden” costs such as installation, does any extra line work need to be carried out, what about storage arrangements? What is the warranty, on both the unit and installation? At the same time do check with your local body for discounts, coupons or incentives offered to help ease the move from National Grid to Solar Power.
2/ We said that over time, savings on monthly power bills will offset the cost of a solar panel so look for good quality units that offer at least a minimum of 20 years life, preferably those with an extendible life span of 35 years.
3/ Efficiency is a key area to be aware of, look for solar cells than can convert maximum energy from sunshinehours. A good check is to ask about the silicon level, higher is better, if in doubt, our experts can point you in the right direction.
4/ Most reputable panes come with a “Tolerance Level” which measures the output under standard testing circumstances. Those with a POSITIVE tolerance are likely to produce a higher output than under test conditions.
5/ Strangely, solar panels do not enjoy being too hot, poor quality panels have a low resistance to high temperatures so check the manufacturers stated temperature coefficient rating, especially if you know your location is likely to be very hot. Here, lower is better.
So, that was a quick, basic round up and look at the different types of solar panels on the market today. If you need further info, please check out out other articles [link] or contact us and our experts will happily answer your questions. We are here to help.
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