William,
I would have to concur with Randy's chart pretty much. A couple
months a go we bought a 2012 Toyota RAV4 EV. I had just recently completed
an upgrade system here (4.5KW PV, Classic, 84 KW of Rolls batts and a
Radian). We are off-grid.
The research I did before purch
William,
I found this on Wikipedia:
Level Original definition[195]Coulomb Technologies' definition[196]
Connectors
Level 1 AC energy to the vehicle's on-board charger; from the most common U.S.
grounded household receptacle, commonly referred to as a 120 volt outlet.
120 V AC
http://nationalcarcharging.com/downloads/
has several models of 240 vac chargers with full spec sheets. I just
met them at a trade show.
R.Ray Walters
CTO, Solarray, Inc
Nabcep Certified, Licensed Contractor
808 269-7491
On 2/22/2013 5:29 PM, William Miller wrote:
Friends:
I would not both
Hi William:
I'm working on an off grid charging station for a Chevy Volt. I decided
to stick with the onboard 120 VAC charger, as the slower charge rates
are more efficient for both the house and vehicle batteries. Its the
old Puekert's # issue: the faster the charge or discharge rate, the
Friends:
I would not bother this group with a question I could easily answer for
myself with a little research. I thought I could find the answer to this
question on line but it has been very elusive:
Does anyone know the ratings for the available high power electric car charger?
Thanks in
I'm a beginner on wireless networks and RS485.
But I can say that once you get it on wireless LAN, it's cheap and
easy for even a novice to do amazing things. We have a Ubiquiti
nano-bridge M2 set up just for internet to our remote "dorm" cabin for
students when we do workshops.
The line of sight
I have used both 900 Mhz and 2.4 Ghz Wifi with mixed results through trees.
In the past we used Moxa wireless RS-485 bridges which were 900 Mhz devices.
The lower frequency tends to work better with obstructions but not sure about
over the top of a hill.
Depends on how far over the hill you are.
Hi William,
I have successfully used this product below on a few installs without line of
sight, trees, hills, etc in the way approx 1 km span doing exactly what you are
asking for - wireless RS485. It costs more than WiFi bridges, but it also
works!
http://www.bb-elec.com/Products/Wireless-
i have set up wireless bridges for ip to remote locations and my experience
with this has me leaning towards "no dice" william.
these links run in the 2.3 gHz and up range which is line-of-sight only. trees
will even attenuate the signal, so total blockage with the earth looks grim.
have a g
If that is the case, there are some Ethernet bridges that will work.
Depending on distance, you would need to buy a set with either adjustable power
or know the exact range.
I have a security camera set up I used a set on, had adjustable power setting.
Works great. Adjusting the power adds "bend
Steve, Ryan:
I don't quite have line of sight. There is the brow of a hill... I will
look to see if any of the wireless solutions will handle this scenario.
Wm
At 12:57 PM 2/22/2013, Steve Jefferson wrote:
Content-Language: en-US
Content-Type: multipart/alternative;
boundary="_000_41FE25
There is a company called Digi.com. they make a wireless bridge for the RS-485
protocol. Needs to be line of sight, but it will travel about 1000'.
They are familiar with installers using their radios to communicate with our
inverters, set up is pretty straight forward.
I am looking for a part
Friends:
Thanks for the responses to my question. Here is what I have learned:
The main problem is that the Sunny Boy is remote from the house and there
is no signal conduit. There are any number of monitors that can hard wire
to the Sunny Boy, usually with an RS485 connection.
Without a h
Jeffrey,
I agree. We do structural analysis on every roof design and factor in the point
loading at the attachment points. I had floated this idea because it came from
an SE that I work with that also has a PV system. His theory is the definition
snow loads are accumulation of snow over time. A
14 matches
Mail list logo
