We've been using a lot of AE inverters...here's the adjustable ramp rate spec for their 500NX 1kV:
"100 kW/sec maximum; adjustable at 0.1% increments AC Power Ramp: This parameter sets the rate of change in output power in % of max power/second" Cheers, Brian Brian Mehalic NABCEP Certified Solar PV Installation Professional™ R031508-59 IREC ISPQ Certified Affiliated Instructor/PV US-0132 PV Curriculum Developer and Instructor Solar Energy International http://www.solarenergy.org On Mon, Apr 8, 2013 at 2:05 PM, Ray Walters <r...@solarray.com> wrote: > Fellow Wrenches; > > I am consulting on a larger project out of country, and the utility is (as > usual) concerned with disturbances to the grid from the variations in solar > output. I know that most of the latest utility scale inverters have some > ability to control the rate that power ramps up and down, but what is the > time scale? Is it milliseconds, seconds, a minute? > Also, they are hankering for some type of storage, so beyond the inverter > controls, what are some of the available short term storage strategies (2 > to 4 hr) these days? I've heard of several prototype large battery banks > (and fires?).... > Anyone on the list have experience with these? > > As always: thanks in advance for sharing your expertise, > > -- > R.Ray Walters > CTO, Solarray, Inc > Nabcep Certified PV Installer, > Licensed Master Electrician > Solar Design Engineer > 303 505-8760 > > ______________________________**_________________ > List sponsored by Home Power magazine > > List Address: > re-wrenc...@lists.re-wrenches.**org<RE-wrenches@lists.re-wrenches.org> > > Change email address & settings: > http://lists.re-wrenches.org/**options.cgi/re-wrenches-re-**wrenches.org<http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org> > > List-Archive: http://lists.re-wrenches.org/**pipermail/re-wrenches-re-** > wrenches.org<http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org> > > List rules & etiquette: > www.re-wrenches.org/etiquette.**htm<http://www.re-wrenches.org/etiquette.htm> > > Check out participant bios: > www.members.re-wrenches.org > >
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