“Of all renewable energy technologies, utility-scale (larger
than 1 MW capacity) solar PV has experienced the most rapid
decline in the levelised cost of electricity (LCOE), driven by
reductions in module prices and balance of systems costs .
Between 2010 and 2016, the global weighted average total
installed cost of commissioned utility-scale solar PV projects
fell by 65%, with the LCOE falling by 67% over the period.
Projects commissioned in 2016 had an average LCOE of
around USD 0.12 per kWh, and a range of USD 0.05 per kWh
to USD 0.35 per kWh. Costs vary by region, with the 2016
weighted average LCOE of utility-scale solar PV at USD 0.09
per kWh in China and India (down 68% from 2010), USD 0.14
per kWh in OECD countries (down 61% from 2010) and
USD 0.17 per kWh elsewhere (down 57% from 2011). (p See
Table 2.) LCOE ranges have narrowed significantly across all
regional groupings, and there is evidence of acceleration in
the convergence of solar PV installed costs towards the most
See RENEWABLES 2017 GLOBAL STATUS REPORTThe RENEWABLES 2017 GLOBAL STATUS REPORT shows the remarkable declines in cost of photovoltaic power lately. In many places PV is definitely feasible. In my back yard it’s definitely feasible as I don’t charge myself a salary, I have a stock of scrap steel I bought for pennies a pound and I can dig holes and pour concrete myself to cut the capital cost way down. I don’t even need to borrow money for the project. My pension will pay for batteries, PV panels and wiring. I even have parts for the charge-controller and inverter.
I’ve been planning this project for a while and one of the engineering problems is that batteries don’t work so well in the cold. I’ve figured out a neat solution to that. I’ll build an underground battery-vault. Then, in summer, the battery will be cooled by Mother Earth and in the winter the battery will be warmed by Mother Earth. Gophers figured that out millions of years ago. It took me a while. I may need a sump pump, but just a small one, and the battery can run it. I’ll need to dig and pour concrete to mount the solar panels anyway so the technology and material will be available.
My solar PV project will power my Solo EV and run tools, lights and pumps in my yard. The biggest cost won’t be the solar panels but the cells (NiFe) of the battery and their freight. The battery will make sure power is available any time and will last indefinitely.