Centrica also blames the rest of the EU for rising demand, and you make it appear as if this is a result of less free markets. But please, don't take the reader for a fool! A wider free gas market won't result in reduced demand, quite the opposite, and the one siginficant result won't be lower prices for Britain but higher ones everywhere else.
In the last part, maybe you could emphasize the fact that free market has lead to favour gas plants in britain, and would do so too in Europe as a whole, thus further increasing demand for gaz which would in turn results in higher prices on the continent as a whole.