hmmm had to sleep on that one to dream up an answer...
first a few comments on the first part:
- you have progressive neighbors; mine are totally lame and I am the only one with solar - my assessment when getting solar was that you wanted payback of < 10 years - the actual economics are a bit hard to figure; a lot of people forget to figure in they will probably have to replace their inverter (central types) within the lifetime of the panels & will micro-inverter really last > 20 years? - here in Australia solar leasing is not common so I am unfamiliar how that works in detail
now on to your question: lets assume SLTD does come up with a "game changer" solar cell; I think the ideal way to go would be the "floppy disk" selling strategy - remember those hard ones... the guy who invented them got a small amount (trivial) per unit sold and consequently made heaps so re-working for SLTD: - JN licenses out the solar cell to all comers on a small charge per cell basis - perhaps the first comer gets an exclusive period - the cell then propagates through the industry and heaps are sold - us shareholders sit back and count the money rolling in