[RE-wrenches] Micro-Inverter Challenge Winners Declared. Interesting details to follow.

[Drake]

One clear advantage of micro inverters is that string size is not an 
issue.  Especially, dealing with ULA racking, where modules go up in 
groups of 4, often good string sizing is not available.  Sometimes 
string sizing can be found at the bottom of the hot weather voltage 
window for string inverters.  Using minimum voltage may become a 
problem a few years down the line when the modules degrade.  We may 
also see warmer weather, as we have gone beyond the 350 PPM trigger 
point in atmospheric carbon (385 PPM).  Micro inverters should bypass 
these issues.

Also on a ULA ground mount system, inverters can be replaced without 
removing modules.

At 09:44 AM 9/5/2010, you wrote:
>Thanks for the discussion, I have found that for me there is no time 
>advantage in micro inverters.  The wire management under the modules 
>slows me down.  But for very small systems they seem to 
>advantages.  The industry is rapidly changing, and with the code 
>2011 NEC and the arc fault protection clause, it will be a game 
>changer with module optimizers and microinverters taking the lead.
>Darryl