[Roger Metcalfe] If you're reading this you can be sure that you belong to the 99% of humankind that can access the visible spectrum ... in brief, 'good sight'.
[Roger Metcalfe] A silent revolution is taking place in the world of electrical energy - and few people are fully aware of its potential.
[Roger Metcalfe] I was recently confronted with the question of replacing my superbly maintained, flawless 22-year old BMW which gave me much food for thought.
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