AstroPower was founded by Astrosystems. The original parent company, Astrosystems, traded for a while at about $2.00. Astrosystems dissolved, after spinnning off AstroPower, in the last vew years paying its shareholders something like a total of $4.00
I do not remember the details. I learned about Astrosystems through my shares in Astropower and I have been a fan ever since.
The history of ENER is older and more volatile. I am thinking about giving ENER another go, but I do not think there is, presently, a large market for their hydrogen storage efforts.
In the past their amorphous cells were not competive with most cells in their efficiency.
>>I am thinking about giving ENER another go, but I do not think there is, presently, a large market for their hydrogen storage efforts.
In the past their amorphous cells were not competive with most cells in their efficiency. <<
While the efficiency of the thin film amorphous PVs is lower than conventional PV materials, it has improved dramatically and is now almost as high as conventional PV was not too long ago. Furthermore, UniSolar's product continues to produce power even in low levels of ambient light, so that in most applications installations of similar peak capacity will actually deliver more kWh over the day because performance doesn't drop off as drastically in early morning and late afternoon hours.
I would strongly disagree with you over hydrogen storage markets. ENER's specific fuel cell technology aside, the technology offered by Ballard and others is very ripe and ready to go. The hurdle is no longer fuel cells, it's the fuel. No one has yet been able to produce a reformer that is reliable, cheap, and compact/light enough to do the job with conventional fuels. Compression and cryogenic liquification are both too dangerous and too energy intensive for practical widespread use. Only ENER's solid hydride method has been shown to have the right balance of storage density, safety, and charge/discharge kinetics, all in a low volume platform that can be customized to fit anywhere into a vehicle. The market for fuel cells in transportation won't ever get started without it.
I really didn't want to spam here. My apologies to the board for doing so...I felt like I had to bring up ENER to defend my earlier point from Indiantiger's attack, and from there it lead to more unanswered questions. For what it's worth, I am an investor and believer in APWR as well, and while there will be competition between the two, I don't see success for either of them mutually exclusive of success for the other. I'm more than happy to discuss ENER but suggest any questions about it might be better pointed to the appropriate board.