I just manage to download its course training manual. There is one chapter (7) on Batteries
. Unless I am looking at the wrong stuff, I stand to be corrected. That will dash a bit of my hope
. Will still be keen to know the cost of ownership. Nothing is mention anywhere in the report. It can make or break the project. Like counting the chickens before it is hatch.
What will be your ultimate aim? (a) To generate enough power for self consumption or (b) Generate power on a large scale for export?
For option (a) if you cover the entire roof of your home ( I assume an average double storey house) with solar panels it is possible to generate enough power to run your TV, refrigerator and some light bulbs at home. I have the tools to calculate the number of solar panels required for a certain amount of load.
For option (b) you will need a bigger surface area (more than the roof of your house) and much more solar panels.
For both (a) and (b) you will need deep discharge solar batteries for storing the power generated. These are expensive investment. They will last for about 6-7 years before replacement. You will also need a single phase inverter (DC -> AC converter) for option (a) and 3 phase inverter for option (b). You also need regular maintenance = clean the solar panels from dust, maintain the wiring, and troubleshoot/replace faulty equipment.
In order to see return on investment, you have to factor in cost of initial investment in equipment, land rental/purchase, maintenance costs (replacement of batteries, faulty solar panels, inverters etc), salaries for technicians, bank loans against the feed in tariff.
Just my two cents worth.