One of the most enjoyable aspects of having a solar PV system is tracking how much energy the system has generated over time. There are many pv monitoring options available in the market, but in all...
Some of the most important questions for most installers and DIY solar enthusiasts concern mounting solar panels. There are many high quality mounting solutions on the market such Unirac, IronRidge,...
Need to replace a small grid tie inverter attached to older PV modules ,grounded array & 2 mppt - under
Cannot find a isolated inverter around 3.6k The wires at modules are not PV wire, so cannot use any TL version...
It may seem counter-intuitive, but solar panel efficiency is affected negatively by temperature increases. Photovoltaic modules are tested at a temperature of 25 degrees C (STC) – about 77 degrees...
Dave shares his experience with solar through this video. His cabin system is powered by two 80 watts solar panels, via a Blue Sky 2012i charge controller; this system charges a 12 V battery pack. He...
What is the best way to configure 3 strings of 12 panels to combiner box? Keep all leads short as possible or group panels to mim. shade?
Here are the options I am considering:Option 1 - Minimize all leads both positive and negative to combiner box.Option 2 - Minimize only the positive leadsOption 3 - Organize panels into groups so...
Here, near Olympia, WA, it is mostly cloudy during winter. I understand that it is impossible to know how much light there is and how much overcast the sky is. I am just looking for ball park...
I have a 5kw array and would like to power a 5hp 3phase water pump - can I wire 3 x 1phase inverters to produce 3 phase power?
I rebuilt my roof for 150 MPH winds, or for the zombie-near miss tornado. It is 22 gauge steel, white color with 85% reflectance. The seam is H150, 1.5" tall seam, folded over. The hold down clips...
My pole barn roof is made of steel panels very similar to these: click here. They are supported by 2x4 purlins on 24 inch centes. What is the recommended Unirac (or other brand) mounting system for...
I have heard a lot about the PACE (Property Assessed Clean Energy) program here in California but I really don't know how it is going to work, how to apply to it or which counties and cities are...
If I replace the tin on the roof of my pole barn with a solar array how could I seal the joints of the solar panes?
I'm installing 68 modules as 4 strings of 17 with Enphase M215s. My 200 amp service panel does not have any more spaces. Do I need to upgrade my service panel or is there another way to add to the...
I would first isolate the house from the Grid. Then I'd fire up the 4kw generator and plug it into the 220 volt receptacle for the whole house. The Fronius Inverter would sense the sign wave...
Many people are users of Google's 3D drawing tool, Sketchup. What many solar designers don't know is that Sketchup can be used to draw a solar array, place it in a specific geographic location and...