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<font face="Times New Roman, Times, serif">For grid frequency
regulation on a larger project you might want to look at Beacon
Power flywheels. They produce a large carbon fiber flywheel that
can put out as much as 250 kW for short periods of time. It isn't
a long term storage solution - more like a huge capacitor. They
list cloud mitigation for PV as an application, as well as ramp
mitigation for wind.<br>
<br>
<a class="moz-txt-link-freetext" href="http://www.beaconpower.com/solutions/other-flywheel-applications.asp">http://www.beaconpower.com/solutions/other-flywheel-applications.asp</a><br>
<br>
Hilton</font><br>
<pre class="moz-signature" cols="72">--
Hilton Dier III
Renewable Energy Design
Partner, Solar Gain LLC
453 East Hill Rd.
Middlesex, VT 05602
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