Solar is currently the most expensive renewable by far.
Huh? This thinking seems outdated. Average solar has reached (and beaten) cost parity with all competing generation except for about the top 50%, top 25% of wind projects, and nearly all consequential new hydro proposals. ABY is adding solar yield projects with better returns than prior wind and hydro projects developed under more lucrative subsidy regimes... Projects are breaking ground with PPAs in the sub 6 cent range. First Solar, Recurrent Energy are successfully building projects and generating gross margins of 15-20% by selling power at 0.0387 $/kWh and
but the technology just isn't there yet (at least without tremendous expense).
Huh? Specifically what are the technological challenges? Today's technology will likely generate 70% of its nameplate capacity 50 years from now. All components are now offered standard with warranties that will last the entire amortization period. Solar panels and micro inverters would be among if not the most durable and reliable products in your home. Solar energy is available at higher energy density than necessary for single family construction and multi family construction less than 4 stories, aside from that there is no shortage of cheap land, even cheap land at favorable transmission and distribution locations.
There are tens of millions + homes all over the country for which a homeowner with good credit can go net positive energy using a cash flow positive PV investment (e.g. PV + financing = cheaper than utility bill) and actually provide a pretty good return on investment that has lower risk and better return than many different financial vehicles that would be sold to you as part of a balanced portfolio. For a solar array producing power after the 20-25% amortization period, the reduction in total cost of ownership for the home over the lifetime of these components will be tens of thousands of dollars.
You are clearly not up to speed on the technology, the production costs, the financing, or the global explosion in the industry.You have rested on some older state of knowledge too long. The technology awesome. The economics are extremely favorable. The only barrier is the transition to an enlightened long term view about power production. Don't blame cheap, high performance technology for man's failure to identify the obvious advantages of long term thinking.