I notice and appreciate the change it tone, thank you.

I don't disagree with your approach in a general sense, but what I think you should understand is that this approach is not a true measure of the input costs along early points of a technology's adoption curve.

For example, it looks like I can pick up a high end i7 for $300 at standard consumer prices. It has the cutting edge lithography standards, the kinks in that manufacturing process are still getting worked out (wastage), they are still paying off the initial R&D investment, they are actively marketing & selling it, and it's paying for future R&D investment. I can get a nearly equivalent (roughly speaking) Celeron for $40 from the same site, and I didn't even price out ARM/generic fab cpus. The Celeron price (or more accurately, the average price of that Celeron over time) is much more indicative of the true energy input costs of the underlying technology at scale.

A manufactured product has a virtuous cycle (from a consumer perspective, at least) of high upfront cost for development dropping as less marginal R&D is required, at the same time as the production process gets further optimized/automated and economies of scale kick in.

Solar is still definitely in the early stages of adoption based on growth curves, and prices reflect a huge amount of non-energy input costs that are not truly representative of the EROEI that will be present when it represents 10, 20, or +50% of total energy production.

There are certain physical properties of PV cells that prevent efficiencies of +35% or so in standard unconcentrated single-junction pv cells. Because silicon is so ubiquitous, I suspect that we're already hitting points of diminishing returns in research/cell efficiency and production/process optimizations are going to start dominating until product optimizations are necessary to increase density. Right now, the biggest cost I'm aware of is silicon wasteage, which is the driver behind thin-film tech or alternative geometries (eg Solyndra) - I have heard of research into vapor deposition approaches that could greatly limit this. Hypothetically, if that works at scale, I can't really see a mass-produced 250w panel costing more than $50 (could be even lower assuming a market/industry for refined Si recycling from old/damaged panels).

Same thing would eventually go for concentrated multijunction modules that can hit +80% efficiencies, eventually, assuming that the non-Si junctions don't have material constraints (like HRE elements).

Now, I've gone on too long already, but let me say I'm not de facto anti-nuclear. I think light water reactor design is terrifying and I think existing waste storage policy is basically sticking fingers in ears and yelling 'LALALALA'. In order not to end the world with a climate catastrophe, I think it will be a bridge fuel and hopefully novel reactor design tech (eg CANDU) can help there.

However, the future is solar and wind power supplanting coal and nuclear, bio-petroleum from algal/renewable-electric input supplanting necessary high density applications (oil), and biomass methane supplanting NG for intermediate applications like peaking plant generation.

edit: Evidence of this happening already: http://www.seia.org/policy/environment/pv-recycling ... you've accurately noted that there are substantial subsidies, but they exist to accelerate the maturation of this source of energy. In that sense, though, they've been effective and relatively inexpensive.