| Subject | Started by  |
Replies |
|---|---|---|
Sunny Boy vs Solar EdgeI'm installing an 8000 w array on my barn Pretty ideal case facing south with no shading. I'm debating Sunny Boy vs So... |
Donald Edmonston | 2 |
How many pcs of the 120W solar panel do I need?Hi,
I have a project that is:
System current: 14A
Operating voltage: 240V
Operating hr: 6hr
Panel opera... |
Eric Lee | 12 |
Which configuration should I chooseHi all,
Here is my project:
My customer currently use 400W halogen lamps at 240V A.C, we have persuaded them to change t... |
Eric Lee | 1 |
About the InverterHi all,
1) What is the difference between a grid-tie inverter and an off-grid inverter? What components they both... |
Eric Lee | 2 |
Calculation Confirmation of the Solar Panel Power in the DC Lighting SystemDears,
Here is:
Off Grid
Sunshine Duration: 4hr per day
System: 24V DC, 48W
Operating hr = 10 hr
&#... |
Eric Lee | 5 |
Need Solar Charge Controller Recommendation- 12v system, 2x240 watt (Vmpp 30.4v)I've got two REC 240PE(BLK) 240 watt solar panels, and I'm wanting to find the least expensive (but not junk) charge... |
Eric Randall | 1 |
2 solar arrays and one controllerHi
I have identical polycrystalline solar panels mounted on opposite pitches of my roof. I am running them into my sola... |
Fab Sianna | 2 |
pv system for 500 square foot cabin.Hello,
I have a small remote (off grid for now, the telephone company just installed poles and strung wires) hunting ca... |
Frank Erdmann | 3 |
PWM or MPPT for a Uni-Solar thin film with Vmp=16.2V ?Hi,
I want to build a 12V system with thin film flexible panels, which have Vmp=16.2V. It will be installed in an area havin... |
Gabriel Cravchik | 1 |
Grid Tie Inverter 120v into 240v grid?I'm confused how 120 volt grid tie inverters work with the household 240 volt grid. I know how the grid works with (2) 120 ... |
Gordon DeBower | 0 |
72 VOLT BATT ERY ARAYI FOUND NEW BATTERY BACKUP 3000 WATT THAT IS OUTSTANDING WITH ALL THE BELLS AND I HAVE 40TY 108 AH BATTERY BANKS MADE FOR ... |
Greg Moore | 1 |
solar panel mounting I want to mount 3 sharp 240w solar panels on my south wall of an off grid log cabin.I have 3 on garage roof facing south ... |
James Anspaugh | 7 |
Off grid different than on grid for location I would like to know what people think on where to mount the panels. example- on a grid system you would always point the... |
James Anspaugh | 4 |
'hard shading' causing panel failure?I have had a 3kw grid tied system on my house for 8 years. Two parallel strings of 9 panels on either side of a dormer to a Sunn... |
James J | 7 |
parallel different types of panles is o.k.?when hooking up multiple types of panels. IE: different Voc / Nominal. It's o.k. to mix them when they are all in Parallel?... |
James Johnson | 4 |
Equipment Groundiong Conductor Size?I have a small stand alone 12v nominal system with a battery bank. What size wire do I need for the equipment grounding conducto... |
James Johnson | 2 |
parallel shunt charge controllerswhat type of combiner box or ? do I need in order to run (2) ASC shunt controllers to the same battery bank? Help please&#... |
James Johnson | 0 |
Extremely Long Run Solar CalculationHello Everyone!
I have a small off-grid, low-amp (3-10) environment cabin, running 12v lights and charging cell phones ... |
Jeff King | 3 |
Charge Controller for Kaneka 60W 48v Thinfilm Solar PanelI have a off grid cabin with 4 golf cart batteries powering a 12VDC to 120VAC Xantrex 2kW inverter. The main load is CF li... |
Jerry Wenzel | 5 |
Raising PV panels above treesMy location in the woods creates problems for getting sunlight to PV panels. I'm looking for advice on how best to ge... |
Jerry Wenzel | 2 |
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