[Energy] 30 watt pv system completed
roy.morrison114 at yahoo.com
roy.morrison114 at yahoo.com
Sat Dec 3 09:58:11 EST 2011
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
-----Original Message-----
From: Eric Broadbent <ebroadbent at me.com>
Date: Fri, 02 Dec 2011 21:03:30
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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