Home |
Search |
Today's Posts |
#6
|
|||
|
|||
2m antenna and Micro Inverters
Hi Jeff
Can you comment on the fact that these Enphase converters need 240ac volts (grid connection) to run? This means that if ever the power supplier locally ever shuts down for more than a long period of time that these Enphase units become useless. Around my neck of the woods we are getting more and more power outages lasting longer and longer. These inverters require being connected to the grid to function. I understand the safety requirement and it needing to do this to be certified but it really limits the home owner (or cottage owner in my case). Have you ever worked on a system that was more practical? That qualified for the grid program but was useful when detached from the grid? Seems to me if ever the power company decides to cancel the program you may be stuck with 40 inverters that are useless and are 200 dollars each. Any comments are thankful, Regards Tom "Tom" wrote in message ... Thank you sir for your expertise again. Very much appreciated. 73s "Jeff Liebermann" wrote in message ... On Sun, 2 Aug 2015 07:15:26 -0400, "Tom" wrote: That is it in a nutshell. I am waiting for approval for the program, If approved then I can go forward to begin purchasing the system and start building it. One more potential problem. Enphase has an online monitoring system at: https://enlighten.enphaseenergy.com https://enlighten.enphaseenergy.com/public_systems I suggest that you eventually sign up as a system owner. You can download the data and create your own graphs such as: http://802.11junk.com/jeffl/solar/380732/total-energy-21040613-20150213.jpg Incidentally, you can query the Envoy controller directly either via a web interface or using a graphing program (MRTG): http://blog.tinle.org/?p=111 http://pvoutput.org http://pvoutput.org/outputs.jsp None of the system owners I deal with want me to do this, so I haven't bothered to try it. Now that I'm thinking about it, you might run into another problem. The People's Republic of Santa Cruz (county) uses the NFPA NEC code which now demands 2ft of clearance between the roof peak and the solar panels. This clear area is for ventilating the roof should the house catch fire. I have some issues with this requirement because it significantly reduces the available roof area for panels for no benefit because the other side of a typical hip roof is usually clear of solar panels. You might want to check whether this is a requirement in your area. I have some docs on the topic if becomes a problem. Good luck. -- Jeff Liebermann 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558 |
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Forum | |||
Need Info: Pure Sine Wave Inverters and Radio Noise | Equipment | |||
micro--waves | Antenna | |||
Inverters | Swap | |||
New micro TNC, anyone got one? | Digital | |||
New micro TNC, anyone got one? | Digital |