With the Earth's shrinking oil reserves facing unrelenting pressure from the breakneck growth of giant new economies, such as those of China and India, I foresee the next gold rush being the rush to harness the bright white light of our sun to satisfy our seemingly unquenchable thirst for energy. White is the new black. Black gold is being obsoleted by the new white gold of power from sunlight. It's still early days in this transformation, but the great news for investors is that there are decades worth of growth, at the expense of the fossil fuel industry, ahead of us.