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What sort of animals and how many? The water in the tank can be heated in the day to a temp above the temp you want the water in the bucket to be. There would be no need to run a heater at night only to run the circulator pump as needed to keep the bucket above freezing. 50 gallons of water...

I think there is some confusion and it sounds like your CPA is talking about SRECs solar renewal energy credits which are based on the power your solar setup generates vs a federal tax credit which is based on the cost of your system

Exeltech is made in Texas. I have not used their products yet but I have only nice things to say about the company and the people that work there. I came into possession of two non-working 48v 1100 watt XP series inverters by way of a purchase at a famous online auction site. I've been...

https://www.cyboenergy.com/products/productsoverview.html Other variations on the same idea here

Have you considered putting up a high tunnel greenhouse? https://www.nrcs.usda.gov/programs-initiatives/eqip-high-tunnel-initiative You could get one large enough to park the RV in which would offer some protection from the elements and keep it warmer in the winter. / Give you a space to grow...

Vmp is 34v for this panel. To get peak power the output voltage would be 34V. If you are using a PWM charge controller the voltage would match the battery voltage and your current can never be more than ISC (short circuit current) so you would only get 12V * 10 amps = 120 watts out of a 365...

Imagine charging an electric vehicle at a campground using a 50 amp 240V outlet. 50 AMPS * 240V = 12,000 watts assuming a power factor of 1. 1 gallon of diesel = 138,700 BTU 1 kwh = 3412 BTU So 1 hr of charging at 50 amps x 240 = 40945 BTU or 40945 /138700 the same energy as 0.29...

A system that operates in batch mode is possible to build and people have done it. https://crosleyautoclub.com/IcyBall/HomeBuilt/HomeBuilt.html On a webpage I can no longer find someone built one that used a solar thermal collector that had a parabolic mirror focused to heat a iron pipe.

The crud you see is the dried electrolyte from the batteries. Likely KOH (a base) clean it up with some vinegar ( a mild acid) on cotton swab.

Exeltech XP2000 Very high quality, amazing customer service, and they have a repair service for very affordable prices. I bought a 1100 watt 48V model used on <famous e auction site> but ended up with two non-working units. For $100 each (+ shipping) Exeltech repaired both of them. Then they...

Exeltech I started off with two non-working 48v inverters purchased from a shady seller of an auction site and they were able to repair both of them for $100 each + shipping. When the shipping company damaged one on the return trip, then "lost" it after they picked it up to "inspect the...

A solar panel with a VOC of 41 can be used with a 12v battery. It would not be a good fit using that charge controller. A MPPT charge controller can take advantage of the higher voltage input from the solar because it uses a buck converter to step up the current while stepping down the...

Condensate water from an air conditioner or dehumidifier won't have the dissolved minerals that would be in well or tap water but it will get contaminated from the dust, bacteria and otherwise "muck" that collected on the coil. If you have a pressure cooker, stove top or electric and some...

The optimizer says it has max inputs 80V 14A , MPPT voltage range 18 - 80v. On the output side it says the max series fuse is 30 A. The sol-ark 12K has the following limits listed, MPPT voltage range 150 - 425V 500V max, 20 A max per channel (x2) m 6500 W per channel I'd like to know more...

Silage tarps are white on one side. The disadvantage of rocks or any irregular surface is the light gets trapped and or reflected away from the array.

A USB power bank or a 12v jump start pack can run plenty of small items there are USB fans, headlamps and aa battery chargers. Going a bit bigger a counter top ice maker can be had for around $100 it would run on a tiny generator couple that with a cooler and you have a much cheaper way to keep...

The reality of the situation is that even folks with a much larger setup than you are planning may not generate enough power every day to run a fridge in the winter. It is valuable to have more than on way of doing things. Right now tractor supply has an 800w inverter generator on clearance for...

1056 sqft x (8 inches / 12) = 704 cubic feet of concrete 133 lbs per cu ft *704 *.2 = 18,726 BTU to raise the temp of the floor 1 deg F (ignoring losses to the ground, air, etc) https://www.ehow.com/how_6127389_calculate-heat-capacity-concrete.html 1 kwh electric power = 3412 BTU/h so if we...

Do you run an air conditioner at home? Why pay $ to move heat from inside your home to outside where it is already hot? A heat exchanger on your AC unit(s) can move that heat to your pool. Make your AC cost less to run and your pool warmer at the same time...

I've considered using oraguard-290 though there are other options in terms of thickness and expected life given UV exposure. I'm not sure how much it would reduce output or how long the film would last or if the cheaper stuff with less UV inhibiters would mean more PV output...

LP fridge cutting over to AC power? Heat tape on water pipes?

I have an old radio shack security system alarm dialer. It is powered by a 12v battery on a float charge. I wired a relay to a 12v dc adapter powered from the grid and the alarm input to the phone dialer. When the power goes out it calls me and plays the message I recorded. I'm sure there are...

R410a is a blend of 2 refrigerants in a 50/50 mix of R-32 and R-125. R410a is being phased out (because of the r125) and soon no more new r410a equipment will be sold. R32 is slightly flammable. Some would say the R125 was included in the mix to help with the flammability others might imply...

Before building anything it is good to have an estimate of the expected performance. The thing described is a heat engine and as such the power out will depend on the difference in temperature between the hot side and the cold side...

24v 100 ah is 2.4 kwh in theory Inverter might be 85% efficient which would bring that down to closer to 2 khw. 2/1.73*24= 28 hrs that is probably overy optimistic. Ambient temp, opening the doors, defrost, trying to make ice all will impact power usage.

I stumbled on this contactor while researching class t fuses and fuse holders. https://www.digikey.com/en/products/detail/littelfuse-commercial-vehicle-products/dcnev250-g/14671721 rated for 250 amps at 900v dc with a 48v coil. They have 24v coils as well thinking about using one tied into a...

As useful as doing an audit of what you are currently using it can be just as important to do the reverse and calculate what sort of performance you can expect from a given system. One of the most critical limits to understand is the amount of energy stored in your battery. So for a 100 AH lead...

The bus bars connecting the cells?

In my research of fuses these fuses have an AIC rating of 2700 amps. Where a class t fuse such as a jlln250 can interrupt 20,000 amps dc, and a telecom fuse like the L17T series can interrupt 100,000 amps

What gender are the ends of your PV extension cables? Are they male one end female the other or the same on both ends?

Last month my 11 kw system generated 1 SREC, I can sell that SREC for around 53 after the broker takes their cut. This is in MD, the price depends on the location and the price ceiling and the price of the penalty alternative and how many credits the power company has been mandated to purchase...

What seems to happen is folks buy a 3000 watt 12v inverter one battery and one solar panel connected by a cheap pwm charge controller. The large inverter can drain the small battery in minutes and it will take a 100 w panel days to recharge even a trolling motor battery. Disappointment...

The first thing I would buy is a meter to check the voltages at each battery and panel and to measure the current each panel can provide. See what state things are in first. Perhaps a hydrometer for checking SG on each cell in each battery after you try charging them each individually with an...

http://www.batterysizingcalculator.com/ check out what exists already

How is the testing going? Which size did you get and how do you like it?

48V DC heat pump https://www.hotspotenergy.com/DC-air-conditioner/ They also have a grid tie style inverter (no batteries required) that would allow you to run off a generator with AC passthrough. https://www.hotspotenergy.com/solar-air-conditioner/ Refrigeration/AC is energy intensive /...

I don't know what voltage, battery chemistry etc you are using so suggestions are a shot in the dark at best. That said there are battery chargers from Mean Well that accept AC and DC input and can be programed to modify the charging stages (with an external programmer) and the outputs can be...

Look for an air to water heat pump, more common in Europe. Spacepak, hotspot energy, and others make the, same concept as a heat pump pool heater. They make hot water for heating and chilled water for cooling.

Light tower generators are 1800 rpm diesels in the 4 to 8 kw range. Kubota, Kohler and Mitsubishi are common engine manufacturers typically 3 cyl around 1 liter.

You are late to the party if you want to drive a solar powered car cross country. https://electrek.co/2024/07/22/stage-1-of-the-electrek-american-solar-challenge-complete-here-are-the-results/ your vehicle is not optimized for that sort of race. I think a horse would be faster than trying...

BGE has a nifty feature where you can download the data from your smart meter(s). This will tell you how much power you used every hr on any given day. This will help with determining your peak power requirement as well as your total energy usage You can also view it in a graph on the my...

There are inverters that work without the grid and without batteries. https://practicalpreppers.com/product/acdcx-asymmetric-inverter/ Also in hotspot energy.com Sol-ark and others can run without batteries or with batteries but you need batteries to have power without the grid. Since even...

Raise your low voltage cut out to something much higher, and raise your cut in voltage higher too so you keep the state of charge higher. The eq voltage should be higher than your absorb voltage Your battery manufacturer may have a publication like this one with recommended settings...

Boats are funny shaped and don't always have a grid connection so building a fridge / freezer to run off 24V is more "normal" in those circles. Useful info on their site and forum https://www.rparts.com/index.php?cPath=84_13_1_2&osCsid=ddueffrl7dfkbb5dak1thpn413

Wiring a CO detector to a relay to auto shutoff the generator could be done for the price of an interconnectable co detector a relay small battery and could be a life saver no mater where the generator is located. If the goal of the project is to reduce noise and prevent theft I think there...

Back It would be good to have the following info Voc on solar panels ISC of panel Vmp Model number of charge controller MPPT or PWM If your panels are a used residential 60 cell ~ 36v VOC type of unit and your charge controller is a PWM type then .. That sort of system will be...

What brand of battery is it and how much did it cost? The folks over at GB battery recommend a charging rate between 68 and 136A for that size of cell. https://gb-battery.com/products/ols/products/6-125-15-sb-slash-1379ah-solar-battery-module

You need a much larger battery and a much larger array to power that sort of load constantly. 7 X 1.1 kw * 24 hr = 184.8 kwh per 24 hr period. if 7.7 kw all the time 7.7 kw / 48v = 160 amps not counting on the losses of the inverter which could be 5 - 15% If the inverter is 90%...