Good news but old news
Actually there has been quite a bit of development in alternative solar cells. Check out nanosolar and their solar cell printing technology. They have achieved production and power efficiency leaps by utilizing technology from the microchip industry.
Also, the oil and coal industry is, in fact, smart enough to realize that their fossil resources are finite, which is why companies like BP continue to invest in solar technology and brand themselves "energy companies" rather than oil companies. Oil still rules the market, however, we may witness that change in our lifetimes.
The most exciting development in alternative energy is actually wind power. There have been very successful deployments of wind farms in New York State and elsewhere. Windfarms have an efficiency and generating muscle that can replace coal and nuclear plants completely. That is where my bet is!
April 17, 2006