Will Solar Power Generation Destroy The Retail Electricity Business Model?

According to the Edison Electric Institute in America, the ever decreasing costs of purchasing and installing solar power generation is a major threat to the retail electricity generation sector.
Read the report here: http://www.eei.org/ourissues/finance/Documents/disruptivechallenges.pdf

It has to be asked, is it really a good long term investment buying shares in the Mighty River Power sell-off given the rapid advancements being made in the alternative technology sector such as Graphine based solar panels and the like? I would say no. The New Zealand Government knows that the retail electricity business will decline steadily over the next few decades and they have planned to dump these soon to be heavily de-valued assets onto naive and/or ignorant NZ investors.
SEE ALSO: http://inhabitat.com/graphene-based-solar-cells-could-yield-60-efficiency/
http://www.extremetech.com/electronics/143907-cheap-graphene-based-solar...
Dont invest in Mighty River Power folks, it is a con.