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Check this out: http://gosolarcalifornia.cleanpowerestimator.com/

Yes it is.

That's called net metering. You don't actually sell the power back, you build up a credit during the day (you can actually see your meter spinning backwards!) and when the sun goes down you use that credit. The key is making sure you have enough credit built up.

Actually, anytime a module is shaded it affects the power output (watts). All modules have blocking diodes so if one stops producing (including from shading) it won't affect the others, you only lose the output from that one module.

Usually it's 8-12 years, the higher your rates the faster you get your money back. Power output on the panels are usually guaranteed to last 25 years. I love installing microinverters, so much easier. No worries about string sizes and too much voltage for the inverter. Enphase has made it...

Crap!!! Sorry for the double post.

They already make parabolic modules, this one is 6.2kw array Car batteries could be used but they aren't deep-cycle, so they wouldn't last very long. And they would leak sulfuric acid everywhere while charging. Not to mention the fumes. You would still need a charge controller, and a car...

They already make parabolic modules, this one is 6.2kw array Car batteries could be used but they aren't deep-cycle, so they wouldn't last very long. And they would leak sulfuric acid everywhere while charging. Not to mention the fumes. You would still need a charge controller, and a car...

That's without batteries, which would basically double the cost of the system. I did run across a site that looks promising, http://shopdiyenergy.com/. I'll check it out when I get a chance. If you want the best, go with sunpower modules.

Take a look at this: https://www.rollitup.org/grow-room-design-setup/507836-show-off-youre-grow-room-19.html

I'll be adding a CO2 generator, AC, and dehumidifier before sealing the room the rest of the way. I still need 1 hood and 3 ballasts so I have a lot of money to spend that I don't have right now.

For just 4 1000w lights you would need a 12.5kw system, assuming 318w modules you would need 39 of them. There is no way you can do that for $6k-$7k. The inverter for that system costs $5k alone. I'm not talking about something I don't know about, I have my NABCEP and install solar daily. Even...

My garage is a work in progress, but here it is. In the grow area there are four, 1000w raptor hoods with 8" vents. They are connected to 220v receptacles in the ceiling. I used the cords that came with them to connect the ballasts to the receptacles and made my own for the hoods. The ballasts...

I have been using Stinkbud's Botanicare formula and it works great!

It's easy once you know how to do it. This just makes it even easier.

Glad you like it. look at the new one, sheet 2 has the CO2 calc.

Hello everyone!!! I've learned a lot lurking around here, so I thought I would give back a little. I made an Excel spreadsheet to calculate the electricity costs for up to 25 electrical items. It gives you the daily total as well as a 30 day total. Also I have a grow record in Word format to...

That part is true, it's just humans have a lot more variables in development.

You cannot compare a plant's genetics to a human. If you take a clone it is an EXACT GENETIC DUPLICATE of the mother, able to produce the same quality as the mother.

StinkBuds nutes work great, didn't realize you could start off that hot. Makes them grow like crazy!