That side of the basement is finished completely.
I'm waffling between off grid solar and running the line.
Did a lot math lately with size of the pumps, batteries, solar panels. Basically everything has to be oversized. Likely need 400W of solar generating capacity to run a 37W pump 24/7. Had to triple check the math because I didn't really believe it. So solar is going to be a much bigger PITA than I swagged it, which is what some other posters have warned me about.
Right now I am split between two plans.
A, from panel:
- Open up a trench in the drywall near the ceiling in the basement
- drill through the framing
- run romex on a new circuit to a junction box
- splice in waterproof cabling
- run in RMC to the greenhouse
- add in waterproof lightswitch and GFCI outlet
B, from panel:
- Drill out through masonry block to garage
- fish up behind the drywall up to the exposed rafters
- attach conduit to rafters with ubracket (trying to avoid drilling through the rafters)
- run back down through drywall to exit point (this gets me to the other side of the garage door where there is no patio slab)
- run romex on a new circuit to a junction box
- splice in waterproof cabling
- run in RMC to the greenhouse
- add in waterproof lightswitch and GFCI outlet
Problem with option B is the exit point is much further from the greenhouse than option A. Advantage is no demo. But I may want to run a second circuit along the same route as option A in the future to rewire the master bedroom, so I can kill two birds with 1 1/2 stones there.
I'm delaying the decision while reading NFPA 70 to get more up to speed.