I've used the wattnode with APRS' wind data logger to provide data
logging for 20 K Jacobs and 10K bergey turbines, as there has never been
real time data logging equipment for either of their inverters.
we've been pretty happy with them. just plug in the equation for the
voltage into your ex
Wayne,
As you suggested, because this is a new service, a PV service disconnect is
required. The question of whether a second disconnect is required, a new
disconnect for the main service, is a Code issue, as far as I can tell. It
is also an interpretation, but I¹ll get to that later.
It just so
AWEA's FAQ sheet addressing the Economic Stimulus Package states that for
equipment to qualify for the 30% tax credit it must "generally" be new. Can
anyone define this a bit better? Would anyone know if fully reconditioned
and/or rebuilt units with full warranties qualify? Who makes the
determ
William, In my case the full monitoring system was installed on a IG5000
three+ years ago, we also included the large display. All systems are
functioning very well. I just wish the software allowed for a few more bells
and whistles.
Mario Monesterio
Westwood Renewables, LLC
St.Paul, MN
C: 6
The Solar Pathfinder now has a unique solar thermal progam for the site
analysis that can do an NREL solar analysis from a digital picture . Their
solar hot water estimating program can be downloaded on your computer that
allows you to enter data for a site specific performance analysis.from th
Mario:
Thanks. We'll give it a try.
William
At 12:39 PM 3/10/2009, you wrote:
Content-Language: en-US
Content-Type: multipart/alternative;
boundary="_000_EDC01F5F5941C546B43997A6FDE59B3B1E20B37EB7postmanwestwo_"
William, In my case the full monitoring system was installed on a IG5000
th
In 1983 Arco Solar and the Lightning & Transients Research Institute,
St. Paul, MN, presented a paper at the Greece PV conference titled
"Ability of Photovoltaic Modules to Withstand Lightning Strikes."
Summary: The ability of glass superstrate and metal/plastic substrate
modules to withstand ligh
Hello Wayne,
Correct me if I am misunderstanding you. You have had to install an AC disco
between the inverter and the service panel backfeed breaker. Now you have to
install another AC disco between the first AC disco and the service panel. Huh?
Joel Davidson
- Original Message -
I would opt for "sort of new".
Matt
roger dixon wrote:
AWEA's FAQ sheet addressing the Economic Stimulus Package states that for
equipment to qualify for the 30% tax credit it must "generally" be
new. Can
anyone define this a bit better? Would anyone know if fully reconditioned
and/or rebuil
Thanks Joel
the Lightning and Transients research Institute has been closed, I am sorry to
say. The paper is valuable and reassuring, if the module frames are properly
grounded, they act as a shield and will protect the PV source and output
circuits if they are shielded via conduit or coaxial
I hope I can help. If he installs ahead of the meter (line side install) he is
installing a new service. because of the high short current rating of the
Grid, he must use a "Service Rated Disconnect" If you install a new service its
disconnect must be grouped with the other disconnect. If th
A few years ago, Bill Brooks or another wrench specified 5 ohms or less when
measured with a special meter but I can't recall the meter. No problem if
the ground is saturated, but lightning in the southwest US often comes in
the storm front before the soaking rain.
- Original Message -
I agree. A true line-side connection is a new service and requires a circuit
breaker and disconnect and revenue meter. I guess a better description for
what we've been talking about is a load-side tap that is between the
existing revenue meter and the distribution service panel main circuit
bre
If the lightning pulse is 10,000 amps and I want to limit it to 1000 volts I
need less than 1/10 ohm. I guess that 1 ohm would be ok? yes even here in
minnesota often strikes come before rain.
I have used two types of meter, Fall of potential and clamp type. Fall of
potential meters use tw
Friends:
I was not aware that the goal was to install the point of connection ahead
of the meter. The section says: "A photovoltaic power source shall be
permitted to be connected to the supply side of the service disconnecting
means..."(emphasis added). The goal is to be down stream of the
This is a feed-in tariff program, not a net-metered program. So as long as
the inverter output circuit is metered, no one is giving away any PV
generated electricity. In fact, PV-generated energy is bought at $0.32/kWh:
http://www.greentechmedia.com/articles/gainesville-to-launch-solar-feed-in-t
a
16 matches
Mail list logo
