New VP2 in So Cal
supdave:
Just a note to say thanks for the forum and great information here.
I settled on a Wireless Davis VP2 and I installed the following way in the photo. ISS about 10 feet above ground on my deck railing. Makes it easy to maintain and has plenty of ventilation and seemed the best place in my yard since it is relatively small. The anemometer installed on 10 foot 1 1/2" EMT from Home Depot on a chimney mount. Not sure of the height but it is probably between 30 to 40 feet about ground level. It is higher than the roof apex by ~4-5 feet. I get pretty steady winds because I am on a hill. Peak wind gust just recorded during the last Santa Ana event on March 2 was 33mph.
I am using a Meteohub on a iConnect with Weatherlink IP logger with the great PHP website template from Ken at Saratoga and other PHP page contributors.
That is a Sunpower 4KW system on my roof for those interested. At my location it will generate about 6.1MWh a year (~17KWh per day avg).
Thanks to all.
Dave
Skywatch:
Looks nice. Is your anemometer on a connected to the ISS or are you using a anemometer transmitter? Reason I ask is the ISS's location to the concrete seems like it would throw the temperature off on sunny days. Other than that looks nice. Anemometer seems well sited. You did locate the anemometer correctly to avoid the ventury effect or winds acceleration over inclined surfaces. Some station's anemometers are located just a few inches of the apex of the roof resulting in higher wind speeds. But yours looks good. The temperature location is my only concern.
Garth Bock:
Looks nice !!! I agree about the ISS siting above the concrete.
The Sunpower is a nice system. I take it you are running an inverter. Charging batteries or just selling the excess to the PoCo ?
supdave:
Yes, ISS is connected to the anemometer so I was struggling to place it elsewhere without spending the money on the transmitter. I would have bought the separate transmitter in a second if it could have supported the UV and Solar inputs remote as well but Davis said it couldn't.
What you can't see from the photo is my neighbor has some pretty large pine trees (to the right of the ISS) so the ISS is actually shaded quite a bit of the day. I was thinking that that kind of mitigated the issue of the ISS being above the concrete but I could be completely wrong about that. I know it isn't an ideal sitting.
The Sunpower systrem is Grid Tied with inverter so I buy and sell to the grid (So Cal Edison).
Thanks for your thoughts!
Dave
Skywatch:
Quote from: supdave on March 05, 2012, 03:53:13 PM
Yes, ISS is connected to the anemometer so I was struggling to place it elsewhere without spending the money on the transmitter. I would have bought the separate transmitter in a second if it could have supported the UV and Solar inputs remote as well but Davis said it couldn't.
What you can't see from the photo is my neighbor has some pretty large pine trees (to the right of the ISS) so the ISS is actually shaded quite a bit of the day. I was thinking that that kind of mitigated the issue of the ISS being above the concrete but I could be completely wrong about that. I know it isn't an ideal sitting.
The Sunpower systrem is Grid Tied with inverter so I buy and sell to the grid (So Cal Edison).
Thanks for your thoughts!
Dave
You wouldn't need the anemometer transmitter for UV and solar if the ISS can be sited facing South provided any hills or surrounding structures like houses, trees, etc are out of range from obstructing the sensors expoasure to the sun. Or you could buy a 25 ft extention cable and set the sensors up elseware. http://www.wxforum.net/index.php?topic=14713.0
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