[Energy] 30 watt pv system completed
Sage Radachowsky
sage.radachowsky at gmail.com
Sat Dec 3 18:07:41 EST 2011
It is a nice system but rather lite power for our camp. I think we may be
better served by more Watts. I don't think that the police would have a
problem with a solar panel because it is not a building material.
Sage
On Dec 3, 2011 3:41 PM, "Eric Broadbent" <ebroadbent at me.com> wrote:
> What do you think of this system?
>
> http://www.provantage.com/athenatech-mic-40w~7ATHN03V.htm
>
> It seems to compare reasonably well with this - on Ed's sundance solar
> site:
>
> http://store.sundancesolar.com/20wadosoenst.html
>
> In thinking about this - I realize that bringing a 3x5 - or larger - PV
> panel to Dewey Square would arouse the attention of our esteemed public
> safety officials, who are no doubt there for our protection but nonetheless
> might judge such a thing unfavorably. So the smaller system you and Ed
> have put together is really good for that reason.
>
> A 12V battery charging system does allow for some amount of
> standard-appliance AC power - as Sage has suggested. During the last
> couple of storms that have knocked out power I've run a sump pump
> intermittently, a freezer for about 30 minutes every 6 hours, and a couple
> of lights and laptops continuously off of one 12V battery with a 1200W
> inverter. I had to charge the battery during this time to be able to run
> all this, and I don't know how many amp-hours or overall power drain it
> was, but a good charge controller should help understand this.
>
> Anyway, it sounds like there will be a bike-gen build tomorrow as well as
> the delivery of this 30W charging system - so if folks can let us know the
> timing of these things that would allow others to participate and learn.
> Thanks very much.
>
> -Eric B.
>
> On Dec 3, 2011, at 9:58 AM, roy.morrison114 at yahoo.com wrote:
>
> The major issue with PV use is battery storage size in amp-hours and power
> output of the collectors to meet the load.
>
> To run stuff like computers will quickly drain the fully charged battery
> of Ed's system that could fully recharge 8 cell phone batteries a day - or
> run some low wattage LED. Useful, but not huge.
>
> For bigger stuff Ed can design systems from components, bigger batteries,
> bigger panels as well as sell ready made commercial rigs.
>
> He's the man and has been designing and building systems for years. He put
> together the occupy rig from stuff laying around his shop in a few hours.
>
> You can get some sense of what he can offer on his website
> www.sundancesolar.com
>
> Roy
>
> Roy
> Sent from my Verizon Wireless BlackBerry
> ------------------------------
> *From: * Eric Broadbent <ebroadbent at me.com>
> *Date: *Fri, 02 Dec 2011 21:03:30 -0500
> *To: *Roy Morrison<roy.morrison114 at yahoo.com>; Dana Moser<
> dana at occupyboston.org>
> *Cc: *<energy at lists.occupyboston.org>
> *Subject: *Re: [Energy] 30 watt pv system completed
>
> Very cool.
> When do you think Ed will have the parts list to share?
>
> So this is a battery-charging system, which is what I had thought was the
> primary goal, but then I re-read an email from Sage who was asking for 100W
> panels - has an inverter, and is aiming at powering normal AC type stuff
> (in the media tent, etc.)
>
> What is needed most if we are going to set up a supply-chain of sorts?
> Should there be some of both kinds of systems?
>
> I called Home Despot to see if they have panels in the store, and they
> don't. You have to order online and they are delivered.
> Also contacted a solar supply warehouse in Gardner, and they are getting
> back to me in the morning with prices - but I need to give them a panel
> spec, which goes back to the question.
> Same thing if we want people to donate $ for systems which will be
> purchased from a supplier.
> A nationally known online site is willing to try to set this up (for other
> Occupy sites too) if the panels are US-made - which seems completely
> in-line with the goals of Occupy.
> (Buying cheap stuff from overseas is not in anyone's interests...)
>
> Sorry - I know this is a lot to raise, but the basic question is what is
> the kind of system that makes the most sense to assemble (and ask for
> donations for)?
>
> Thanks,
> -Eric B.
>
> On Dec 2, 2011, at 8:47 PM, Roy Morrison wrote:
>
>
> Ed Bender of Sundance Solar in NH has fabricated a prototype 30 watt PV
> system charging a battery in a small cooler box with voltage controller
> and two plug in ports rigged for cell phone charging. (See photos
> sentseparately.
>
> The system uses a very durable flexible solar panel designed for Marine
> applications. The prototype has the panel hard wired into the cooler.
> Subsequent versions will have a plug in design to allow the panel to be
> disconnected.
>
> Ed has put instructions for operation inside the lid of the cooler box
>
> The cooler box makes the system moderately weather resistant. The box
> should be kept in a tent or under cover for charging, The panel is very,
> very durable and in full sun should charge the battery in four hours.
>
> I will deliver the system on Sunday afternoon. Ed used available parts
> and I paid a discounted price for the system that I will donate to Occupy..
>
> Ed is developing a parts list, instructions for assembly and cost for
> parts, as well as prices for purchasing assembled systems.The intention is
> developing low cost, potentially do-it-yourself systems.
>
> Where shall I drive to deliver the system? 'The weight is about 20-25
> pounds for the charger box plus the attached panel.,
>
> Roy
>
>
>
> Roy Morrison
> roy.morrison114 at yahoo.com
> sustainability at snhu.edu
> www.RMAenergy.net
> www.EcoPowerHedge.com
> www.EcoCivilization.info
> 603-496-4260
> P.O Box 201
> Warner, NH 03278
> ----- Forwarded Message -----
> *From:* Ed Bender <ed at sundancesolar.com>
> *To:* 'Roy Morrison' <roy.morrison114 at yahoo.com>
> *Sent:* Friday, December 2, 2011 3:00 PM
> *Subject:* RE: Occupy PV?
>
> Pics.
>
> Ed Bender
> President, Sundance Solar Products, Inc.
> http://store.sundancesolar.com/
> 672 Currier Rd.
> Hopkinton NH 03229
> 603-225-2020 v.
> 603-225-2022 f.
> -----Original Message-----
> *From:* Roy Morrison [mailto:roy.morrison114 at yahoo.com]
> *Sent**:* Thursday, December 01, 2011 3:05 PM
> *To:* Ed Bender
> *Cc:* Pentti Aalto
> *Subject:* Occupy PV?
>
> What the status? Shall I come over?
>
> Roy
>
> Roy Morrison
> roy.morrison114 at yahoo.com
> sustainability at snhu.edu
> www.RMAenergy.net
> www.EcoPowerHedge.com
> www.EcoCivilization.info
> 603-496-4260
> P.O Box 201
> Warner, NH 03278
>
>
>
>
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