This article reviews that photovoltaic technology is growing more popular as a means of distributed generation and as a source of power for the world. Net metering now available in nearly every state in the Union is a strong incentive for this kind of alternative energy because it allows excess power generated during peak hours of sunshine to reverse an electric meter, selling power back to the utility. In addition, many states encourage solar power installations by offering a 50 percent subsidy, making the net cost to an average home-owner about $5,000. Rural electrification through solar power is exemplified in Indonesia, a country of 17,000 islands, of which about 6000 are inhabited. Prior to 1991, more than 10,000 solar home systems were installed in the country, according to the World Energy Council in London. Since solar power generation peaks at the same time spot power prices spike, companies are looking very closely at comparative costs.