In an interesting study just published in the Proceedings of the National Academy of Sciences, the authors predict that climate change will have a more significant impact on peak energy demand than had previously been understood. They conclude that, in a business as usual case, peak demand will increase 18%, leading to a need to spend $180B (in current dollars) to meet that increased peak demand.
The authors acknowledge that their estimates are based on current infrastructure and that the development of energy storage 
could play a role in mitigating the need for new generation sources to meet peak demand.… More