Smaller, Cheaper, Faster: Does Moore's Law Apply to Solar Cells? by Ramez Naam →
The way the future looks depends on the rate of decline in the cost of solar power. In this article (my title is a link), Ramez Naam says that solar power is getting cheaper at the rate of 7% per year. Notice how his graph with a logarithmic scale compares to his graph with a regular scale. By the rule of 70, how many years to cut the cost of solar power in half?