Aloha All, We have been integrating Aquion Energy batteries into select Off Grid homes for just over a year now, with great success. The key is designing them for what they are, and not as if they were a lead acid battery. The biggest added design criteria is taking into consideration their power limitation's along with energy sizing. Most lead acid batteries only needed to be designed around energy and not power. Often, specially with Aquion first generation S10 stacks, sizing the battery around a customers power required a larger battery then their energy requirements.
Aquion's first generation stacks had a very high impedance, causing large voltage swings with any thing larger then a 2 amp per stack charge or discharge cycle. If you designed a battery matching just the energy concerns, you would most likely run into power limitations and therefore the batteries voltage would drop below most inverters operating window. The first generation S10 stack, would drop down to 30V! Aquion's third generation S20P stack is currently shipping it has a much lower impedance allowing full capacity discharge above 40Vdc. Their ability to have a fluctuating SOC, and not require charging to 100% without shortening their cycle life is a major advantage over lead acid, not to mention, being the only non hazardous battery in the world, no maintenance and not requiring to be equalized. Mahalo, Roland Shackelford NABCEP CERTIFIED PV INSTALLER Vice President Renewable Energy Services (RES), Inc. 45-487 Lehua St. P.O. Box 1518 Honoka'a, HI 96727 Office: 808-775-7410 Fax: 808-775-7756 Mobile: *808-938-9239 <http://808-938-9239>* E-Mail: rol...@renewablenergy.com www.renewablenergy.com *Privileged And Confidential Communication. This electronic transmission, and any documents attached hereto, (a) are protected by the Electronic Privacy Act (18 USC ?? 2510-2521), (b) may contain confidential and/or legally privileged information, and (c) are for the sole use of the intended recipient named above. If you have received this electronic message in error, please notify the sender and delete the electronic message. Any disclosure, copying, distribution, or use of the contents of the information received in error is strictly prohibited. * *IRS Circular 230 Notice: Pursuant to the Internal Revenue Service requirements we inform you that, unless specifically indicated otherwise, any tax advise contained in this e-mail, including any attachments, is not intended or written to be used, and cannot be used, by the recipient or any other person for the purpose of (i) avoiding penalties that may be imposed under the Internal Revenue Code or (ii) promoting, marketing, or recommending to another party any tax-related matter addressed herein. * On Thu, Jul 16, 2015 at 4:27 AM, Starlight Solar Power Systems < la...@starlightsolar.com> wrote: > Hi Mark, > > There was some discussion back in November 2014 on this list. They claim > 100% DoD but I can’t see how you can use the full capacity of the battery > due to the broad operating voltage. > > Larry Crutcher > Starlight Solar Power Systems > > > > On Jul 16, 2015, at 5:20 AM, Mark Frye <ma...@berkeleysolar.com> wrote: > > Does anyone have any thoughts/experience with the Aquion Energy battery? > > Mark Frye > Berkeley Solar Electric Systems > _______________________________________________ > List sponsored by Redwood Alliance > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > www.members.re-wrenches.org > > > _______________________________________________ > List sponsored by Redwood Alliance > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > www.members.re-wrenches.org > >
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