First pick which type suits you best, then see which specialists give the best prices after government grants and electricity buy back schemes.
There are basically only two key types of solar panel. The less sophisticated sort which just harvest Solar Energy as hot water (solar water heaters), and the more modern type which produce useful amounts of electricity. Both systems can prove to be cost effective as long as they are professionally installed, and when you take advantage of state subsidies which are presently available.
Obviously, the photo-electric kinds of solar panel are more sophisticated, more costly and perhaps more useful, because it’s possible to use the electricity that they generate for a much wider range of tasks, in addition to the water heating job which is the only thing that the more traditional panels are capable of.
So, water heating Solar Panels will reduce your gas and electricity use by producing all or part of your hot water and household heating demands. Water heating solar panels supply hot water during the day, and this can easily be stored in the majority of domestic hot water systems, which can used when the family come home in the evenings, and in the mornings. Of course, there are heat losses to be suffered in keeping the hot water from when it is produced (during the day) until when it is needed (most often during the evenings and early mornings). These losses may be quite serious, depending on the efficiency of the system and time lag between when the water is warmed and when it is required.
Solar panels (also known as photo-voltaic cells) will additionally produce energy for heating, but also they can run your household appliances such as dishwashers etc. What’s more, you can sell any surplus electricity to the national grid at a special price. However, you will always pay more for the electricity that you buy, than for the electricity that you sell back to the grid. For this reason, the power of photo-electric panels can be most effectively harnessed if you make one or two alterations to your daily routine. You should be able to setyour household appliances to work during the day, when they will consume free electricity. You should also where possible try to plan any other jobs requiring heavy electrical energy, so that you do them during the day. By doing this, you will make the most of free electricity, and minimize your use of bought in electricity.
Basic overview of residential solar projects. If you are thinking about adding solar to your roof, this video will help you understand the information you need to know to get started.