To shift the global economy from fossil fuels to renewable energy will require the construction of wind, solar, nuclear, and other installations on a vast scale, significantly altering the face of the planet. Can these new forms of energy approach the scale needed to meet the world’s energy demands?
After a banner year in 2008 of investments directed to capital-intensive technologies like solar and wind, US venture capitalists backed away from that plan in 2009. So where are they putting their money now? Where the fastest payback is likely to be. New analysis shows a surge of investments in energy efficiency solutions—such as smart grid, and commercial and residential energy management.
With global eco awareness expanding on climate issues, it is not a surprise to many that the fastest growth in CO2 levels has occurred in the last 10 years. Studies indicate that electricity generation and consumption is the largest contributor and is increasing faster than any other energy sector. However, efforts to manage electricity show the slowest decline in emissions progress.