Interesting, PG&E is offering financial incentives for companies who remove hardware through virtualization projects. Look for green data centers to be a big theme in 2008, there is already a number of venture investors who are targeting this trend, and more will surely follow. If the federal government gets involved, which is quite possible, it will be a gold rush of significant proportions.
Based on typical power use of servers, incentives can range from $150 to $300 per server removed through a virtualization project. Incentives are capped at 50% of the total project cost, per the NRR-DR program guidelines.