google ducks-back-curve. Battery storage is max value for about 2 hrs a day during the evening demand as solar shuts down and baseload power ramps up.
When the grid pays battery owners their actual rate during that peak need, a battery system can completely pay for itself in about 2 yeard. bob On Wed, Sep 1, 2021 at 12:53 PM Willie via EV <[email protected]> wrote: > > > On 9/1/21 10:20 AM, Peri Hartman via EV wrote: > > It could be that the grid can't handle any significant generation of > > PV energy. If it could, economics would dictate that excess PV energy > > would be sold, not shut down. > > > > The other possibility is this will produce an incentive to create > > hydrogen storage for excess PV energy. In my opinion, that's an > > excellent use for electrolysis plus either hydrogen turbines or fuel > > cells. Note, for this application, the hydrogen does not need to be > > compressed. > > > Speaking without great familiarity with storage costs, I think short > term battery storage is most likely to solve the problem. Battery stored > energy can get to the grid for only about a 20% loss while hydrogen, as > I understand, will be FAR less efficient. > > Typically, over production of either wind or PV can be managed with > storage of well under 24 hours. We can look forward to continued > battery cost reductions, especially from Tesla. > > For longer term storage, hydrogen might find a niche. > > > > _______________________________________________ > Address messages to [email protected] > No other addresses in TO and CC fields > UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub > ARCHIVE: http://www.evdl.org/archive/ > LIST INFO: http://lists.evdl.org/listinfo.cgi/ev-evdl.org _______________________________________________ Address messages to [email protected] No other addresses in TO and CC fields UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub ARCHIVE: http://www.evdl.org/archive/ LIST INFO: http://lists.evdl.org/listinfo.cgi/ev-evdl.org
