Grid Tie Solar Installation

08arcticcat said:

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19'x12' with a total of 37 internal risers with aluminum plates painted black. 1 circ pump to move glycol into the floor loops. 1 amazon special temperature controller to start and stop the pump based on air temp in the collector. Best ive seen is close to 45000btu/hr of free heat into my shop.

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08arcticcat said:

Have you considered taking that 25g that youd spend on solar and putting it into a high dividend account and using the returns to offset your electrical bill?

25000 x 4.4%(XEI etf) = 1100/year

Maybe its better to get solar if your not planning on moving and leaving the solar system behind.

I built a 40000btu/hr glycol heater this year to heat my shop. It works well but will take a long time to recover costs. It is a cool project though

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jhurkot said:

These are great points, thanks! Will be ground mount on concrete and for the concrete specs I'm just going to get that info from the manufacturer.

As far as the rates that's another thing I need to look into as that would help a lot but I can always play with that stuff after the system is installed.

Current system design is going to be a fronius 15kw string inverter with 48 370watt modules (72cell). Total cost for 17.7kw system is $1.31/watt (includes inverter, wiring, modules, racking) does not include some cable (inverter to power pole) or concrete work.

For what it's worth I priced out a 12.2kw system last year and it was the same price although that system used different modules and micro inverters.

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adamg said:

A coworker of mine is almost finished his grid tie solar installation at his acreage. So far he's met with lots and lots of code requirements, hurdles and stumbling blocks. He thinks he's close to flipping the switch.

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lilduke said:

Id like to get some solar maybe. Off grid though. I dont want to rely on the grid working.

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ABMax24 said:

Can you claim the greener homes grant if you install yourself?

Or are you going to try?

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jhurkot said:

If you already have a grid connection just grid tie and have battery back up.


Sent from my iPad using Tapatalk

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lilduke said:

Sounds like a good idea, except i trust the power company as much as I trust the government, and would like to keep them out of it all togther.

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jhurkot said:

I don’t think I’m eligible because I would have to be a contractor. I’m getting good pricing on the materials so that will help a lot.

I’m done with government programs. We had a turbine to replace and through this farm efficiency program we could get a subsidy. I went with a smaller pump which Phu*ed my self over and then they said the subsidy was gone by the time they got my paper work. The smaller pump caused a lot of grief and we ended up replacing it with the original size a few years later. I would much prefer the government let us keep our earned money to spend our way instead of taking it and giving it back like it’s some kind of present.

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team dirt said:

I just built this solar array for my cabin this fall. It’s 8 450w panels grouped in 2 in series then the 4 groups parallel. Gets me around 45amps at around 100vdc when full sun. My charge controller switches it to 48vdc. I’ve got 8 6v 450a/h batteries series for 48v hooked to an outback radian 4048 inverter and a 10,000w kubota diesel for when there’s no solar charge. In Seymour arm that’s pretty much from November to April. There’s no grid to tie to up there.
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deaner said:

Do the materials vary alot? Doesn't seem to pencil out when getting a local contractor to put a setup in. If a guy could get a good deal on materials and do most of the work himself, it might pencil out better?

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