[RE-wrenches] SMA Sunny Design temperature/voltage calculations

Howie Michaelson howie at suncatchervt.com
Fri Dec 2 12:16:49 PST 2011


Nice to hear that I wasn't the only one bothered by this change - my
partners were getting tired of hearing me complain about the lesser
functionality in some ways of Sunny Design.

I am getting used to sunny design and appreciate various aspects of the
improvements, but it is slower to use, more clunky because as people have
said making quick changes for "what-ifs" is not so quick, and it hides
results behind numbers that are not well defined - particularly the
high/low voltage numbers as affected by temperature.

Steve, I am not opposed to change, but I am disappointed in this case that
the change ended up loosing ease and information in certain important
ways.

Thanks for listening,
Howie
-- 
Howie Michaelson
NABCEP Certified Solar PV Installer™

Catamount Solar, LLC
Renewable Energy Systems Sales and Service
VT Solar Electric & Hot Water Incentive Partner
http://www.CatamountSolar.com
802-272-0004


On Fri, December 2, 2011 2:50 pm, Jason Szumlanski wrote:
> New Version = New Coke
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> Cut your losses and bring back the web tool!
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> Jason Szumlanski
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> Fafco Solar
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> From: re-wrenches-bounces at lists.re-wrenches.org
> [mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of Scott
> McCalmont
> Sent: Friday, December 02, 2011 2:18 PM
> To: RE-wrenches
> Subject: Re: [RE-wrenches] SMA Sunny Design temperature/voltage
> calculations
>
>
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> I agree with Luke. I use a Mac with Parallels for the odd Windows-only
> program. The last time I wanted to use the SMA string sizing tool I
> ended up using another solution because I didn't want to deal with
> starting up Windows. The future is the web, and there is really no
> reason not to have the tool available online.
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> On Dec 2, 2011, at 10:41 AM, Luke Christy wrote:
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> I also echo the frustration with the removal of the online SMA design
> tool. Setting aside the issues of how much quicker it was to check
> different sizing options with the old web version, I'm also annoyed that
> the new version is not available for Mac OS, which means I have to start
> up my janky old PC laptop if I want to use the tool.
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> Bring back the old version!
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> Luke Christy
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> 	Luke Christy
>
>
> 	NABCEP Certified PV Installer(tm): Certification #031409-25
> (Luke Christy)
>
> 	NABCEP Certified Solar Thermal Installer(tm): Certification
> #ST032611-03
> 	 CoSEIA Certified PV Installer (Luke Christy)
>
> 	Solar Gain Services, LLC
> 	Monte Vista, CO.
> 	SGSRenewables at Gmail.com
>
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