In November last year, the corruption ridden electricity department of my area “inadvertently” disconnected the electricity supply at my house for non-payment of artificially inflated bills. My electricity supply was restored only after I formally, lawfully and, effectively utilised my "leverage" against such corruption-ridden “inadvertence”.
Meanwhile, a close relative of mine found that the neutral line of my found that the neutral line of my electricity-supply was not disconnected. That gave him the opportunity to utilise the potential difference between the neutral line and the metallic pipe line for the municipal water-supply at my house. There was enough potential difference to produce free electricity or 3 volt bulbs.
There should be plenty of such ready-made potential difference, all around, in the Nature, that can be utilised. People should also find out other devices that would give more powerful performance at lower consumption, unlike those available in Market.
An electrician of my area has, indeed, developed a device that consumes lesser electricity despite proportionally higher performance. I shall describe about his device as soon as he gets his device registered under the patent law.