Th one factor I don't think any of us have enough info on yet is the
reduced lifespan of the inverter. Heat kills electronics, and an
inverter that is running at max capacity more of the time will be
running hotter. The MTBF (mean time between failures) is only going to
get worse at higher heat, so then question becomes how much worse? With
lease programs and financing that uses up to 30 year projected
lifespans, I think we're going to see some long term issues come back
to bite those that saved a few cents/ watt up front.
R.Ray Walters
CTO, Solarray, Inc
Nabcep Certified PV Installer,
Licensed Master Electrician
Solar Design Engineer
303 505-8760
On 8/26/2014 8:14 AM, Steven Lawrence wrote:
As someone who designs very large systems, I agree with Isaac.
There's no one r; ,ule for inverter sizing as there are a multitude
of factors in play. Solarpro's article "Levelized Cost of Energy" in
the April/May 2012 issue goes into inverter ratios and how it ties
into LCOE.
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