> Is it the most profitable place for investment dollars? Probably not, but it's effectively risk-free One could even say it is risk-negative. It decreases the

> Is it the most profitable place for investment dollars? Probably not, but it's effectively risk-free One could even say it is risk-negative. It decreases the risk one runs of future oil price hikes. If you buy solar cells, you buy futures on energy delivery at a guaranteed price.