i purchased in March of 2024. i contacted missouri wind and solar and they stated i have to pay shipping both directions for a replacement unit of lesser value or they would only issue a partial refund for the defective item and would not stated how much.BUYERS BEWARE THEY ONLY WARRANTY ANY ITEM THEY SELL FOR 30 DAYS..NO MORE. THEY SELL CHEAP ITEMS THAT DO NOT LAST... Never recommend this company to anyone...of course they are gonna say ....blah blah blah blah blah....Buy at your own risk you have been warned! CROOKS, CROOKS, CROOKS! read more

The most unprofessional solar company. The sales team, specifically Buck, does not have the right amount of knowledge to be selling to 'do it yourselfers'. Buck, with the help of another salesman, wrongly sized wire and fuses for our project. The undersized wire could have easy led to a major fire in our travel trailer. To make matter worse, the owners... Chrystal and Wes are extremely rude and unhelpful. Rather than making things right by the customer, who spent close to a thousand dollars there, they banned us and erased our negative review of how they do business on Facebook. The entire time we were professional while MWAS was unwilling to admit any wrong doing. Don't trust their postive rating as they erase and sensor negative and honest reviews. Save time and frustration and buy elsewhere. read more

Greatest solar business out there I bought some panels and took to my place set em up and shot em great fun enjoy

This was one of the worst companies I have ever dealt with! They designed a system for me and gave me incorrect information to set it up, after a near blowing up of a controller for the PV, sent me a part but that part needed another part for it to work (they didn't tell me that). When you have questions (poor directions, if any) they don't answer the phone or emails, claim they didn't get it. Sold me a wind turbine system, the resistors caught fire and it destroyed my batteries, they claim I changed the system and REFUSE to give me my money back. After everything I learned when trying to troubleshoot the system, I learned that Missouri wind and solar gives people inaccurate information (serious inaccurate information) that can lead to fires and other damages. According to an electrician who I had to hire for their DIY system, he said "He" would not install it because the equipment is dangerous and faulty. When dealing with this company I was victim of sex discrimination, called an idiot, and yelled at. Stay far far away from them read more

Purchased their 440amp controller. . . It is actually a 100 amp controller according to them. That was ok, I was only going to run 50 amps through it, and that was more than enough. Taking them at their word, I connected the 440A controller to my collectors. It seemed to work for a few days, so I went back home which is 550 miles away. I also decided to order a duel 880A controller, because I was going to put another 1500 to 2000 more watts into my system. One month later I came back to my off grid house, walked by my battery box and controller, and smelled burning. . . I discovered that the controller was burning up. So hot that you could not touch it, and hot enough to burn back some of the insulation. I called Missouri wind and solar and told them what was going on. They claimed my wires were to small. . . (which they were not). So in order to appease them, I spent another 25 dollars and put heavier wire on. . .Exact same thing happened. . .the controller overheats. . . and gets extremely hot. They told me that they were going to set up the situation in the Laboratory there in Missouri, telling me they will get back with me. They never did. . . I borrowed a IR thermometer and measured the temperature of the controller. . .It was over 500F. The bolts where the wires attack were discolored from the intense heat. I sent pictures of the temp, I also showed the amount of current going through the controller. . it was about 35amps. When All said and done, it had been over 3 months for the original controller and almost 3 months for the duel one that I purchased. My reward for working with these people? They will only fix the single controller and give me 80 percent of the new controller. This means I will have to pay 25 dollars worth of shipping to get 45 dollars back from them. because of restocking charges. The digital controllers seem to work, but the Solenoids cannot handle even close to the amount of current they claim .. I have tried 3 of them now, and even with 25 amps at 24 volts, they overheat. There is no way in the world, it is impossible for those Solenoids to handle 100 amps. . . it is impossible, and they are lying about their product. I found out through research, there are other folks who are having this exact same problem with these Solenoids. . . overheating and failing. I uploaded three pictures. . .. One shows the contollers terminals. The terminals got so hot, that they are completely discolored. These are not small terminals either. Another picture shows the temperature of the Solenoid. . .over 500 degrees F. . . I have discovered other people have ran into this exact same problem. . .I am lucky this didn't burn down my house. Another picture shows the amount of current running through the Solenoid, which is about 35 amps. The lower picture shows the voltage drop across the terminals. .. Just less than 1 volt drop. I have sent these pictures to Missouri Wind and Solar, and no response. They refused to set up the situation in a Lab, because it has been months now since they told me that they would. . . and no response except to fix the 440A and give me back 80 percent of what I paid for the 880A. Which amounts to about 45 to 50 dollars. The big issue is this. . . their controllers are far beyond dangerous. They cannot handle the current they claim, and others like me have pointed this out to them. They make every excuse to blame the customers, when in fact the controllers cannot handle that kind of current, not even close. My setup when this happened, was about 35 amps of power, which shows on the Amp meter. that is 1/3 the so called rated power it can handle. Lately I took the duel Solenoid that I have, and had to split up my panels 3 different ways in order for my system to work. I had to run 25 amps of power through each of the Solenoids for a total of 50 amps, and the third set of panels ( 24 amps), I ran directly to the batteries. With this setup, the Solenoids still got hot enough that you cannot touch them, but allowed them to cool down when they switched off. The third set of panels that ran to the batteries kept the Solenoids turned off long enough to cool down and not get hot enough that you could smell them. Don't purchase any of these Solenoid controllers. . . they are extremely dangerous. If you have a smaller system, they will probably do ok. . .but don't expect to run more than about 20 amps through them continuously, or you will have a fire hazard. I lost two batteries because of these things, I also lost about 150 dollars for controllers that cannot even manage my system. My system at that time was approx 1200 watts, but in reality output was about 900 watts or so. My personal opinion and if I were to guess, I believe these controllers are only able to handle the amount of current they specify for a limited amount of time. They are not designed to handle the current they claim for any extended amount of time. If I am correct on this guess, it read more

I bought a "1700" watt windmill from these guys (but more its advertised as a 1600 watt) about a year ago. The front and back are open to the air and let's water in. This then puddles and corroded all the copper wires. They said it only has a month warranty!! I paid 360 for the unit now the same thing sells for 520 bucks!! I only saw max 400 watts from it. It never paid for itself read more

I was looking to design my own solar powered system. I already had bought panels. After talking with their customer service over the phone, they sent me a list of suggested parts and explained the list to me. I had already done my homework but they clarified how to build the system for me. The prices were on par with anything else I could find online. They are local to Missouri so that was a plus. They did not charge me to build the system that would match my solar panels and battery bank. Thanks for the help! read more