[RE-wrenches] Minimum Lux needed
Ray Walters
ray at solarray.com
Thu Sep 5 10:10:34 PDT 2013
On module IV curves, 100 w/m2 is the lowest insolation level usually
listed. It would also depend on the charge controller or inverter being
used. I've seen arrays make power at below 100 w/ m2 if there is enough
array to overcome the operating losses of the electronics.
R.Ray Walters
CTO, Solarray, Inc
Nabcep Certified PV Installer,
Licensed Master Electrician
Solar Design Engineer
303 505-8760
On 9/5/2013 10:28 AM, Benn At DayStarSolar wrote:
> Thank you Kelly.
> Not that I don't believe you, but can you provide any data to back
> this up?
> I should have asked for that upfront.
>
> benn
> Sent from a 'smart' phone, with touch screen keys. Please excuse
> shortcuts and typos.
>
> On 2013-09-05, at 10:24 AM, Kelly Larson <solarwrench at asis.com
> <mailto:solarwrench at asis.com>> wrote:
>
>> Hi Benn,
>>
>> It's around 200W per square meter.
>>
>> Blessings,
>> Kelly
>>
>> Kelly Larson
>> Electrical Engineer
>> NABCEP Certified Solar PV Installation Professional
>> ISPQ Master Trainer
>> CA Electrical Contractor# 868189
>> SolarKelly.com <http://SolarKelly.com>
>>
>> On Sep 5, 2013, at 9:06 AM, Benn At DayStarSolar wrote:
>>
>>> Wrenches,
>>> I was asked... What is the minimum Lux level required to make usable
>>> electricity with a commonly installed monocrystaline PV module.
>>>
>>> The question is for the purpose of designing a tracker that will not
>>> operate until a particular threshold is reached.
>>> Thanks,
>>> benn
>>> Sent from a 'smart' phone, with touch screen keys. Please excuse
>>> shortcuts and typos.
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