Choose The Right Solar Panels For Your Home

Solar technology has advanced a lot over the last few years

. There are now new types of cell and panel which are much more efficient. The cost of manufacturing has come down and it is now a better time to invest in some solar panels for your home. It is important for all of us to find a cheap energy supply as prices rise and global warming increases the imperative for clean energy.

The first decision to make is which type of system to have. There are two options; solar heating and photovoltaic panels. Each has advantages and disadvantages and the decision will also depend on where you live and the amount you can afford to pay.

The cheaper option is solar heating panels which just heat water. They cannot be used for central heating or electricity generation. The system works by changing radiation from the sun into heat. It does not, therefore need direct sunlight to work and can even work on cloudy days. The household water will be heated by the panels during the day and switch to the boiler at night. The saving from this type of system is thought to be around fifteen percent of energy costs.

Solar panels which use photovoltaic cells can change the heat from the sun into electricity. They are more expensive but can save the average household around twice as much as heating panels. You can also get Government grants in many countries to help with the initial costs. You will need to have a decent amount of space on the roof to have them and work out how many you will need. You can have the main part of the system installed and add extra panels later. If you reach a point where the panels are generating excess power then you can either store it or sell it to power companies.

As with all technology, solar panels are changing regularly as new innovations are incorporated. One of the biggest advances has been in efficiency. Most panels are able to generate more heat or power from sunlight than before. For example, you could choose to install solar collectors with evacuated tubes which collect more heat. In addition if you live in a colder climate you could get insulated ones to stop heat loss.

Photovoltaic cells have undergone several changes since they were first sold. You will find 3 types of cell to choose from all made in a different way. The most efficient are the Monocrystalline cells which have an efficiency rating between fifteen to twenty percent. They are the most expensive type but may be worth the investment.

There are many considerations when choosing solar panels. The number of hours of sunlight, direction of your house, size of the roof will all have a bearing on which system you can have. You will also have to look into your average electricity needs and work out how to meet them. Solar energy will not take over altogether but you should assess whether the savings are worth the investment by working out the likely output.

When considering solar power there are a lot of factors to consider. It is worth getting some opinions from professionals before making a decision.

by: David Thorpe

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