Free Solar Pro - Solar Questions and Answers

Do you know where I can get free solar panels from?

Where can I find free solar panels ?

How much to install solar to a house at bribie island that we are building

You can check out our page about "How much a solar system will cost to install" for more information on how to calculate exactly how much your solar system will cost.

angle for solar panels in clarkesville ga 30523

Read about the correct angle for solar panels and just use your latitude of 34.617 in the equation.

thanks for answering. I'm a novice to Solar, and I'm building a log cabin to live in and I'll use solar,wind and some grid. But just to get a good understanding of some of it. what I did was I took some solar lights, then took off the batteries, so I complete solar power. I hooked one up in direct sunlight to my multimeter, it read 2.29, now when I hook two together I still get the same reading. Shouldn't I get double?

Ken,
It depends on how you "hooked two together". If you connect positive on one to the negative on the other (also called series) then you add the Volts together. If you connect positive to positive and negative to negative (also called parallel) then add the Amps together.

How can I find out the last 2 years sun hours per day for Salt Lake City?

Thanks

You can check out our sunlight hours guide for different areas (including SLC) and the number of sun hours you can expect on our Sun Hours/Day page.

I have a home in so Ca. that is 2300sq.ft . My mo bill is around $155. close to KWh of 1,268 , My daily ( KWh)last year was 51.17 this yr. is 42.27 . we were under construction last year. We are a all elect. home. And are loooking at solar the sys. rec. have been 16 panel 36% sys 2.9 Kw-AC sys. How do I know how to what is what I need to make it worth it and at $150.to 165 per mo. bill what can i figure for a solar sys to reasonaby to pay off. Thanks tim

location= kingston NY

roof faces south,
dimentions are 50x15 (upslope)
slope is 5/12

distance from pv j-box on roof to inverter is 120' from inverter to house circut box is 50,
H CIRCUIT BOX IS 200A sq.d homeline
load=12000kwh per year,
desing a grid -tie pv system to service this load use a sharp 224 pv modules and fronius 5100 inverters

1, calculate how menny watts of pv is taakes to service this load,
2,need to figuer out what series string choices for the fronius inverter,
3, need to figure out how menny series strings i need in parallel to get the right # of watts you calculated in (1) get as close as posible please,
4,figuer out wire size for wires from the pv inverter by
a, calculating the volage drop,
b,finding the required ampacity,
c,choosing the bigger wire,

5,same as 4 but for wires from inverter to house circuit box
6,do i have to down size the main braker in my home circuit box?

what % of the load will the system serve?

I have my total watts figured out 16,000 capacity.
The next problem is, all of them will not be needed at the same time.
Most of them will be very minimal all at the same time. It says in my curriculum
to figure the hours running or needed per day but then it doesn't say how to
figure out how many panels needed or the size of any of the supporting equipment
needed.

Solar panel size and #.
Inverter size
Meter size
Battery size and #
Switch gear/disconnect size.
etc.

A heater element draws 13amps from a 230volt supply...wot is the power rating of this appliance and how do i do the equasion to work it out?

How do you calculate the distance between solar panel (PV) rows on a flat roof so that no shade is on the back panels in winter (when the sun is the lowest in the sky).

how menny wats are in a volt or vice versa or more to the ponit i need to find out how menny 18 wats is in voults thank you fore your time and your help.

what solar system output-size (in Watts) would I require to replace a 10kva-capacity diesel generator