PV = Good
Lead acid storage = Bad.
It only really works if the panels are connected to the grid on an in / out reciprocal arrangement. If not, then the green plus is lost to the green negative of disposal of lead and acid.
Just my tupp'orth
Analog chipmaker National Semiconductor took another step towards repositioning itself a green-technology heavyweight when it announced Friday that it had acquired Act Solar, a Santa Clara, California company specializing in power optimization of solar-cell arrays. By doing so, Nat Semi muscled up its SolarMagic solar-power …
There are a lot of "financial" companies flogging P-V investment opportunities in France at the moment due to EDF being forced by gouv.fr to buy 15%(?) of their electricity from renewables.
Not only does this seem pretty dumb in a country where 85% of generating capacity is nuclear and a further 10% hydo, but the figures being bandied about as to the annual generating capacity of a fixed sourth facing panel inclined at ~25 deg are frankly absurd.