[RE-wrenches] Inverter Ramp times

[John Berdner]

Ray:

Adjustable ramp times are becoming a common requirement in EU countries with high penetration PV.
We can adjust in the seconds to minutes (a few thousand seconds) time frame.
I can dig up details if relevant.

Best Regards,

John Berdner
General Manager, North America

SolarEdge Technologies, Inc.
3347 Gateway Boulevard, Fremont CA 94538 USA  (*Please note of our new address.)
T: 510.498.3200, X 747
M: 530.277.4894

-----Original Message-----
From: re-wrenches-bounces at lists.re-wrenches.org [mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of Will White
Sent: Monday, April 08, 2013 12:23 PM
To: RE-wrenches
Subject: Re: [RE-wrenches] Inverter Ramp times

I don't have any experience in large storage but I know Dynapower in Vermont is working on a storage solution.  You should check them out: http://www.dynapowerenergy.com/

Thanks,
Will


__________________________________________________________________________________________
Will White
Regional Field Operations Manager - New England

Real Goods Solar
64 Main St.
Montpelier, VT 05602
Tel: (802) 223-7804
Cell: (802) 234-3167
www.realgoodssolar.com



-----Original Message-----
From: re-wrenches-bounces at lists.re-wrenches.org [mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of Ray Walters
Sent: Monday, April 08, 2013 2:06 PM
To: RE-wrenches
Subject: [RE-wrenches] Inverter Ramp times

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

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