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...
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...
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...
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?
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...
Most home-owners and installers start designing (or defining) their solar PV systems by measuring their roofs and finding out the available space for the solar modules. They've already determined...
The array’s tilt is the angle in degrees from horizontal. A flat roof has 0 degree tilt and a vertical wall mount has a 90 degrees tilt angle. Whether you are installing solar panel on a flat roof or...
Azimuth is the array’s east-west orientation in degrees. In most of the solar PV energy calculator tools, an azimuth value of zero is facing equator in both northern and southern hemispheres....
Photovoltaic arrays are typically installed on rooftops, near power transmission lines, constructed of aluminum frames, and must be free from objects that shade them. Optimum exposure to sunlight...
Hey, My friend from France told me about white tags for renewable energy. Can you tell me more about it and is there anything similar in the US?
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...