Unfortunately, other energy companies still not admit the advantages of free energy and even mislead people about it. They ignore the truth to protect their investment, profits and shareholders though they do know what it can bring to the world. It has affected people's attitude toward free energy, and created the obstruction which kept everyone away from the familiarization with it.

Although the energy companies have provided us with their electricity for decades, we could not help wondering how we could continue to afford its price as it is becoming more and more expensive. Moreover, these kinds of energy are not friendly to our environment. Should we continue to use their electricity? Or is this just a part of their plan, which brings us long-term effects? May be in the future we still have to depend on them, generating their free and friendly to our environment energy.

So what can we do now? Before having any comment about this problem, we must find out what those companies are going to do. We could either be angry, complaining about our being taken advantage of for such a long time or we could just try to figure out the way to help ourselves out of this situation. But how about having our own opinion?

We are depending too much on fossil fuels. However, this source is not an inexhaustible one. We over use it without, or worse, with the knowing what our future generation have to suffer. The consequence cannot be clearly seen now but will be in the future. So let just forget what free energy is, but let see if it is possible. We do not need another controversial issue to talk about while the real problem is the threatened world.

It seems to happen one more time. At the beginning of the 20th century, Nikola Tesla claimed that he had found a way to get free energy and he was made fun of by his own friend and investor, J.P. Morgan. It is quite easy to understand since Morgan, just like Edison, was earning money from electricity. As a result, they stopped giving Tesla the fund to continue his researches because they believe he was "mad". Sadly, the belief can still be seen until now.

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Before buying solar panels or even getting a price, there are a lot of sensible things to ask prospective installers over the phone or when they visit your property to give you a quote.

How many years of experience do they have installing them? Lots of companies are brand new, and whilst this alone doesn't mean they won't do a good job, it may be something to consider if negotiating with the price.

Have they looked at your roof and fusebox carefully? Obviously, they need to consider what your property is like very carefully before they can hope to give accurate figures for the cost effectiveness of the panels or how difficult it will be to install them.

What is the person like? Perhaps this is the most important factor. Get a feel for if you trust them or not - go with your gut. Assurance is worth paying a bit extra for.

Can they provide references of people for whom they've previously installed the panels? If not, why not? Most companies should be happy to do this.

Will they take the time to talk you through the Feed in Tariff and the Renewable Heat Incentive? People who are impatient when they are giving you a price are likely not to care as much about you the customer - they may do a poor job.

How much will the system generate in terms of financial returns? How accurate is this figure? How much will the price of the solar panels be? You need to know both of these things in order to work out the solar panel cost effectiveness, so it is reasonable to expect that you will be given this information.

Does the work or the system come with a guarantee? Look for at least a 15-20 year guarantee. A lot of companies will offer a 25 year guarantee too. Solar panels are reliable, so the guarantee should be for a long time. Remember that the Feed in Tariff and the Renewable Heat Incentive mean you need the panels working respectively for a 25 year or 20 year period.

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