I'm in orange county now but still do plan check and installs in the coachella
valley. One concern I would have in the warmer desert climates (122 dg in
summer) is the amount of heat under a solar panel.
________________________________
From: "Kelly Keilwitz, Whidbey Sun & Wind" <[email protected]>
To: RE Wrenches listserve <[email protected]>
Sent: Friday, February 6, 2009 11:47:30 PM
Subject: Re: [RE-wrenches] Enphase Micro Inverter Energy System
Hi Max,
We’ve done one, have one in the shop ready to go, and another on contract.
Great solution for future expansion and clean installation. All mods are in
parallel, but installation (with adapter cord) is end to end. No main inverter,
no DC disconnect, no service or “grouped” AC disconnect required. It’s just one
(or more) branch circuit to a 15A DP breaker. We’ve estimated that for systems
<2.5 kW it’s more cost effective, than using a string inverter. That’s with no
shading. If you have partial shading or different orientations the
cost-effectiveness improves dramatically for larger systems.
Our inspectors want a partial-cover array inspection (to check inverter listing
and mounting), which is a bit of a hassle to arrange. Hopefully that will ease
up once they see a few installs.
Enphase gets the customer with the web-based, subscription, system monitoring.
For small systems the production will barely cover the base cost + annual fee
(free for the first year).
-Kelly
Kelly Keilwitz, P.E.
Whidbey Sun & Wind, LLC
Renewable Energy Systems
NABCEP Certified PV Installer
987 Wanamaker Rd,
Coupeville, WA 98239
PH & FAX 360-678-7131
[email protected]
On 2/6/09 5:37 PM, "Max Balchowsky" <[email protected]> wrote:
I've been asked to evaluate a set of plans that came accross the counter of a
local municipality recently. It was the microinverter system by Enphase. I've
seen this product, but this is the first actual installation I'm exposed to.
Has anyone installed these?
Max Balchowsky
SEE Systems
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