Backup power for grow room

majins

Well-Known Member
Have lost power at my place so many times this year im really thinking of adding a back up.
Power outages have been from 30mins to 3-4 hours.

Basically have 3 ways I could do it but ill give some specs on my room first.
Total draw for the room is 450W, Which will soon be increasing to 680W when I add my last lot of lights to it.
I run DWC so the air pump is my main concern when ever the power has gone out. Followed by ventilation fans then lights.

I can stand to lose the de-humidifer for quite a few hours so that cunts 120W off my requirement.
So 600W would be about the smallest requirement unless I drop back to only running 1/2 my lights.


So here are the options im looking at.

1:
12V 800W or 1000W pure sine wave inverter.
Can pick the inverter up for around $150-200.
Batterys arnt too much of a issue since we sell them at my work and have quite a decent stock pile of 2nd hand trade ins. Have used this in emergency siturations where power been off more then 2 hours to run the air pump off a 150W car ciggy light inverter.

The biggest issue will be running the inverter all the time and the loss of efficiency from that unless I can figure out some relay system which switches on when the power goes out, For charging the batterys have a auto 100 amp max charger.


2:
UPS system, 600W or 1000W
Pricing is around about the same $140 for a 600W or $200 for 1000W but its simulated sine wave (not to sure if LED will have a issue with that)
And the provided battery with them are rated quite low. (10min full load, 40min low load),
Takes a 24V battery that I dont have so would have to rig up something to extend that if I needed if it would even work with it.

This is probably the easiest option since its all made to be ran 24/7.


3:
Diesel generator, 1500W
A bit more expensive at $299 but has pure sine wave, More power then I need and very long run times.
Issue being its quite noisy and maintenance of diesel engine and having fuel storage.
Has no auto start up so id be required to start it myself and change plugs over so this is the least likely option.


Does any one else have any other suggestions or have used one of these sort of setups themself.
 

Instape

Well-Known Member
No one run back up power?
Not yet,
but I intend running a small generator just for fans, Wolf 800 or similar,
just check it every few months is it for maintenance,
I would buy petrol so I can circulate fuel in storage,
with my car, but obvs. diesel if my car was.

but I will only need a couple of gallons for my tiny grow.
Messing round with batteries and the limited run times would put me off.

Thats my 1c worth, prob. not much use but it's miserable to have a plummeting thread.:joint:
 

majins

Well-Known Member
Looks like I will be going the UPS way, Managed to pick up a large one 2nd hand for cheap with out battery's.
Battery's can be bought new for $60 per extra hour @ 600W draw.
So have about $240 in batterys and $100 for the unit.
Ill just have the dehumidifier only plugged into the mains power.
 

Nugachino

Well-Known Member
I've thought about using a 600-800w UPS for mine. My system draw is only 180w though. So, I'd probably get a good 3-4 hours. Also. That's with the light at full tilt.

Despite the flat reactions. It's not that stupid to have your ladies with some kind of buffer in case you have any issues with the grid. Throw in some 100w solar panels and they could trickle charge the unit.
 

torontoke

Well-Known Member
How about ordering a 5-600watt wind turbine and eliminating the chance of ever having a power outage again?
Batteries should stay topped up if your bank is sized right.
You could put a few small solar panels to run the pumps and fans.
 

Banana444

Well-Known Member
I use a generator, got a smaller one that you cannot even hear from 100ft away. Hell of a lot quieter than a lawn mower. I only lose power about once a year but have been down for several days.
 
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