[RE-wrenches] Generator choice for Sunny Island
August Goers
august at luminalt.com
Tue Jul 11 14:05:48 PDT 2017
The 14RESA unit we have has an integrated battery charger. We just need to
wire a 15 A circuit from our backup panel to the terminals to keep the
starter battery charged. I confirmed that the warranty is 18 months or 1000
hours of operation for offgrid use.
August
*August Goers*
Luminalt Energy Corporation
o: 415.641.4000
m: 415.559.1525
www.luminalt.com
On Tue, Jul 11, 2017 at 8:47 AM, Dana <dana at solarwork.com> wrote:
> This gen has a significant phantom load, & there is no way to avoid it.
> I have installed several & had to provide either a 10 watt PV module or a
> 120-12 volt battery maintainer.
>
> ------------------------------------------------------------
> ----------------
> Dana Orzel Great Solar Works, Inc.
> 208.721.7003 dana at solarwork.com
> Idaho Contractor - # 028765 Idaho PV # 028374
> NABCEP # 051112-136 www.solarwork.biz
> "Responsible Technologies for Responsible People since 1988"
> Please consider the environment before printing this email.
>
>
> -----Original Message-----
> From: RE-wrenches [mailto:re-wrenches-bounces at lists.re-wrenches.org] On
> Behalf Of Dave Angelini Offgrid Solar
> Sent: Tuesday, July 11, 2017 8:36 AM
> To: RE-wrenches <re-wrenches at lists.re-wrenches.org>
> Subject: Re: [RE-wrenches] Generator choice for Sunny Island
>
> I remember most having to run a small soar panel to keep the start battery
> from draining. I too hope that is fixed. It looked to me that the offgrid
> warranty is 1/2 of grid-tie. --Dave
> > What is the standby current draw on this unit. In the past, that has
> > been an issue with Kohler.
> >
> > At 06:01 PM 7/10/2017, you wrote:
> >>All - update for those of you interested, we are starting the portal
> >>installation tomorrow (with a Sunny Island for better or worse) and
> >>ended up going with a Kohler 14RESA propane generator.
> >>This should be 2-wire start, ok at 100% duty cycle 120 v, and CARB
> >>compliant. If all goes as planned we'll be up and running next week
> >>and I'll keep you posted.
> >>
> >><http://www.kohlergenerators.com/home-generators/products/14RESA>http:
> >>//www.kohlergenerators.com/home-generators/products/14RESA
> >>
> >>-August
> >>
> >>August Goers
> >>
> >>Luminalt Energy Corporation
> >>
> >>o: 415.641.4000
> >>
> >>m: 415.559.1525
> >>
> >><http://www.luminalt.com>www.luminalt.com
> >>
> >>Â
> >>
> >>On Fri, Jun 23, 2017 at 3:46 PM, Dave Angelini Offgrid Solar
> >><<mailto:offgridsolar at sti.net>offgridsolar at sti.net> wrote:
> >>I did a few projects for Yosemite. Then I used the EU6500i which is
> >>now the EU7000i. Never had anyone ask. and that you will find is the
> issue.
> >> In
> >>my county of Mariposa they will issue a certificate of occupancy on a
> >>house running a generator for final approval. Pretty lax about it all.
> >>If I go across the county line into Tuolumne everything is hard to do.
> >>Geeze an offgrid generator...Use Honda or design so that you don't
> >>need one :)
> >>
> >>Dave Angelini / Offgrid Solar
> >>
> >>
> >> > Hi Gary and All â€â€œ
> >> >
> >> >
> >> >
> >> > We looked into the EcoGen unit, but the 6kW is discontinued and the
> >> 15kW
> >> > EcoGen is not rated to be sold in California. Bummer.
> >> >
> >> >
> >> >
> >> > Speaking of California, do any of you know about the CARB
> >> > compliance issues on selecting a generator for an offgrid renewable
> >> > project? We had one generator rep tell us that only a Tier 4F CARB
> >> > generators are legal
> >> for
> >> > use
> >> > with offgrid in California, but I can’t ¢t
> >> find anything online to clarify.
> >> > Since this project is in the National Parks, we need to make sure
> >> > we don̢۪t
> >> > > have any compliance issues. If anyone knows anything about what
> >> > > kind
> >> of
> >> > CARB compliance is or isn̢۪t required, I, I̢۪d love to hear
> >> > about
> >> it.
> >> > >
> >> >
> >> >
> >> > Cheers!
> >> >
> >> >
> >> >
> >> > August
> >> >
> >> >
> >> >
> >> > *From:* RE-wrenches
> >> > [mailto:re-wrenches-bounces at lists.re-wrenches.org]
> >> *On
> >> > Behalf Of *Gary Willett
> >> > *Sent:* Friday, June 16, 2017 7:58 AM
> >> > *To:*
> >> <mailto:re-wrenches at lists.re-wrenches.org>re-wrenches at lists.re-wrench
> >> es.org
> >> > *Subject:* Re: [RE-wrenches] Generator choice for Sunny Island
> >> >
> >> >
> >> >
> >> > AUGUST:
> >> >
> >> > The Generac EcoGen is dual-fuel capable (NG or LP), comes in 6kW
> >> > and
> >> 15kW
> >> > versions, is 2-wire start, can be field-configured for either 120V
> >> > or 240V.
> >> > It's not "portable" as it does not have wheels. It's transportable
> >> though
> >> > based on its footprint and weight. Also, it was specifically
> >> > designed
> >> and
> >> > warranteed for off-grid applications.
> >> >
> >> > Regards,
> >> >
> >> > Gary Willett PE
> >> > Icarus Engineering LLC
> >> >
> >> > On 6/16/17 9:36 AM, Kevin Pegg wrote:
> >> >
> >> > You could use a 2 -> 3 wire converter such as the Atkinson GSCM
> >> > module that will take the 2 wire output from the SI and convert to
> >> > 3-wire to
> >> control a
> >> > gasoline generator such as the Honda EU7000 series, or Cummins/Onan
> >> makes
> >> > a
> >> > good line of gasoline generators. It may be very hard to find a gas
> >> > generator that has 2 wire native remote start. That is more common
> >> with
> >> > larger propane or diesel generators.
> >> >
> >> >
> >> >
> >> > Kevin
> >> >
> >> >
> >> >
> >> > *From:* RE-wrenches
> >> [mailto:<mailto:re-wrenches-bounces at lists.re-wrenches.org>re-wrenches
> >> -bounces at lists.re-wrenches.org
> >> >
> >> <<mailto:re-wrenches-bounces at lists.re-wrenches.org>re-wrenches-bounce
> >> s at lists.re-wrenches.org>]
> >> *On Behalf Of *August Goers
> >> > *Sent:* June-16-17 7:22 AM
> >> > *To:* RE-wrenches
> >> <<mailto:re-wrenches at lists.re-wrenches.org>re-wrenches at lists.re-wrenc
> >> hes.org>
> >> >
> >> <<mailto:re-wrenches at lists.re-wrenches.org>re-wrenches at lists.re-wrenc
> >> hes.org>
> >> > *Subject:* Re: [RE-wrenches] Generator choice for Sunny Island
> >> >
> >> >
> >> >
> >> > Thanks for the good feedback folks!
> >> >
> >> >
> >> >
> >> > We are using a Sunny Island setup because we had access to a free
> >> Sunny
> >> > Island and Sunny Boy being scrapped from another site. Otherwise I
> >> > was definitely planning on going with a Outback DC coupled system.
> >> >
> >> >
> >> >
> >> > I think the trick here is trying to find a portable generator that
> >> > has
> >> a
> >> > two-wire start option. I̢۪m looking
> >> throurough the usual genny suppliers and
> >> > nothing has presented itself so far. Anyway,
> >> I’™ll keep looking and will
> >> > check out Chris̢۪ suggestion on the nexus
> >> controtroller and Generac propane
> >> > unit as well.
> >> >
> >> >
> >> >
> >> > FYI, here is a link to what the portal is
> >> like. Itâ€ââ„¢s going in National
> >> > Park
> >> > land by the Golden Gate Bridge so I hope we can pull it together!
> >> > <http://www.sharedstudios.com/>http://www.sharedstudios.com/
> >> >
> >> >
> >> >
> >> > August
> >> >
> >> > Luminalt
> >> >
> >> >
> >> >
> >> >
> >> >
> >> > *From:* RE-wrenches
> >> > [mailto:re-wrenches-bounces at lists.re-wrenches.org]
> >> *On
> >> > Behalf Of *Chris Mason
> >> > *Sent:* Friday, June 16, 2017 4:56 AM
> >> > *To:* RE-wrenches
> >> <<mailto:re-wrenches at lists.re-wrenches.org>re-wrenches at lists.re-wrenc
> >> hes.org>
> >> > *Subject:* Re: [RE-wrenches] Generator choice for Sunny Island
> >> >
> >> >
> >> >
> >> > To my limited mind, the whole 120V sunny island setup is a disaster.
> >> Why
> >> > not install a DC coupled 8KW Outback Radian and solve all your
> >> problems.
> >> > USe any 240V generator, although finding a 2 wire start gasoline
> >> > unit
> >> may
> >> > be hard. I would use a Nexus controller generac propane generator
> >> > with propane tank, all mounted on the container. I would never
> >> > design
> >> anything
> >> > to use gasoline, it's too dangerous.
> >> >
> >> >
> >> >
> >> > On Fri, Jun 16, 2017 at 7:19 AM, Matthew
> >> Sirum <<mailto:matthewsirum at gmail.com>matthewsirum at gmail.com>
> >> > wrote:
> >> >
> >> > Greetings August,
> >> >
> >> > Great thoughts and comments from Brian! I would also suggest
> >> speaking
> >> > with the generator manufacturers' tech/engineering folks regarding
> >> > the 120VAC configuration and to confirm 2-wire start set up once
> >> > you have a brand and model or two in mind. Generator parts and
> >> > service availability in the region of the project may also drive
> >> > brand selection. If you need to maximize the inverter's battery
> >> > charging capabilities (depending on battery system charging
> >> > requirements) you may end up needing to look at generators in the
> >> > 7.5 kW to 8.0 kW capacity range to allow for headroom in generator
> output loading.
> >> >
> >> > Also; I am curious how you arrived at an AC coupled design for this
> >> > project. I do not know any of the details or specific projects
> >> > goals you are working with, but I would potentially consider a DC
> >> > coupled system design... DC/DC charge controller(s) would keep
> >> > the battery system charged (and any DC loads operable) even if the
> >> > Sunny Island and/or Sunny Boy(s) have a failure or is taken
> >> > offline. If most of the AC loads are 120VAC I would consider
> >> > keeping the inverter AC output circuit 120VAC and install a
> >> > dedicated transformer solely for the 240VAC load.... Or perhaps
> consider a 120/240VAC inverter model.
> >> > Depending on the overall situation a DC coupled system could be
> >> > more resilient. The dedicated transformer for the 240VAC load
> >> > could also potentially help make the system more robust. Also; I
> >> > have spoken with a number of folks who have told me they wish the
> >> > Sunny Island had more/better features for generator integration.Â
> >> > I'd like to hear
> >> more
> >> > from those who have plenty of experience designing and installing
> >> > systems with Sunny Islands and generators to learn what the current
> >> > thoughts and issues are.
> >> >
> >> > I hope some of these thoughts may be helpful.
> >> >
> >> > Best regards,
> >> >
> >> > ----MATT
> >> >
> >> > Matthew Sirum
> >> > P.O. Box 1227
> >> > Greenfield, MA 01302-1227Â USA
> >> > phone: +1.413.773.0611
> >> > email: <mailto:MatthewSirum at gmail.com>MatthewSirum at gmail.com
> >> >
> >> >
> >> > --------Â Original Message Below --------
> >> >
> >> > [RE-wrenches] Generator choice for Sunny Island August Goers august
> >> > at <http://luminalt.com>luminalt.com Thu Jun 15 09:02:41 PDT 2017
> >> >
> >> > Hi Wrenches, especially those of you who work on off-grid projects,
> >> >
> >> > We have an upcoming off-grid project where we will be powering a
> >> storage
> >> > container with electronics in it. The loads are mostly 120 volt but
> >> there
> >> > is a 240 volt heat pump that might occasionally run. We̢۪re AC
> >> coupling
> >> > > the
> >> > Sunny Island with a Sunny Boy PV inverter. So, weâ€â„„¢ll be
> >> installing a
> >> > Outback PSX-240 autoformer to bump the Sunny
> >> Islandâ€ââ„¢s output from 120 to
> >> > 240 volt.
> >> >
> >> > We need to select a generator for backup. We need a two-wire
> >> > electric start (in order to be controlled by the Sunny Island) and
> >> > preferably a
> >> generator
> >> > that is okay just running 120 volt loads since the Sunny Islands
> >> > input
> >> is
> >> > only 120 volt. Something in the 3 kVA -7 kVA range should be fine.
> >> >
> >> > Does anyone have experience or ideas about what kind of two-wire
> >> > start generator we might select?
> >> >
> >> > Thanks,
> >> >
> >> > August
> >> >
> >> > Luminalt
> >> > _______________________________________________
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> >> >
> >> >
> >> > --
> >> >
> >> > Chris Mason
> >> >
> >> > NABCEP Certified Solar PV Installerâ„¢
> >> >
> >> > Solar Design Engineer
> >> >
> >> > Generac Generators Industrial technician
> >> >
> >> >
> >> >
> >> > <http://www.cometsolar.com>www.cometsolar.com
> >> <http://www.cometenergysystems.com>
> >> >
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> >> >
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> >>
> >>Dave Angelini Offgrid Solar
> >>"we go where powerlines don't"
> >><http://members.sti.net/offgridsolar/>http://members.sti.net/offgridso
> >>lar/ e-mail <mailto:offgridsolar at sti.net>offgridsolar at sti.net
> >>text <tel:209%20813%200060>209 813 0060
> >>
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