Heavy snow build up that completely blocks light will prevent the generation, but a well-designed system that effectively uses panel angle will efficiently use reflected light and reduce snow buildup. Is snow covering your solar panels? No problem! Panels will still generate electricity with a thin layer of snow. In fact, the increased reflection of light off white snow can also result in increased output from panels in the winter. As temperature decreases, the efficiency of the modules actually increases because the material properties in the panels operate more effectively. Homeowners with solar in snow states actually benefit from their panels’ increased productivity. Solar Panels Actually Produce More Electricity in Cold Temperatures Heavy snow buildup may temporarily reduce solar array electricity generation, but a well-designed system will optimize production and lead to lower electricity bills. Though it might seem counter-intuitive, solar panels are actually a great investment in snowy regions because colder temperatures will generally increase productivity. You could also use a BMV to, for example, auto-start a genset at say 50% SoC rather than disconnect the battery.With the Cyclone Bomb bringing record low temperatures to the East Coast this month, many homeowners have had snow on the mind. with it I might decide to restrict my consumption ( one fewer coffees for example!) but I don't use it to disconnect my battery. And I use my BMV to clearly show an accurate SoC. as an emergency mechanism to protect my investment. I use the BatteryProtect like a lithium-ion battery owner uses a BMS i.e. With a properly designed system, you should never have to forcibly disconnect the battery. they will calculate their energy consumption and design their PV input to replenish that consumption on a daily basis. One other consideration: most people will design their system to avoid discharging their battery below a certain threshold e.g. heavy loads dragging the battery voltage down. Whatever battery monitor you buy, do make sure it includes this feature in order to avoid nuisance activation e.g. One advantage of the Victron BMV is that it calculates SoC accounting for the peukert effect. This signal could then be used, for example, to switch off an inverter, or, of course, shut off a BatteryProtect. The Victron BMV can be programmed to activate its relay on a variety of conditions, such as SoC <= 50%. For this application I would use a battery monitor with a programmable relay, such as the Victron BMV ( other manufacturers will be available). It is not designed to shut off at 50% SoC. Yes, the Victron BatteryProtect is designed to protect the battery from discharge/voltage levels that would otherwise damage the battery. Is there a better way to do this? Or a cheaper device that I can still configure the voltages? The best option I can find is "Powerwerx Compact Low Voltage Disconnect (LVD) Battery Guard 35A" for $85, but that seems a little pricy if I'm going to buy 2. Inverter would not be covered, but most have built in protection anyway. So, I need to (hopefully) add a low voltage cut off without buying a new Charge Controller.īuy 2x35A low voltage cut offs and put one on the power to the trailer and 1 on the power to my new distribution block.
I know that many of the nice combo units have low voltage cut off, but I bought an EPEVER 50A MPPT - which doesn't even have a load out. If not, I guess I'm upgrading to Lithium a year or so earlier than anticipated. I put a 1 amp trickle charger on the battery, and hope to revive the AGM. I do have it plugged up to shore power, which is why I left the motion light on, but apparently the shore power charging of the batteries doesn't work (there were a lot of electrical issues with the trailer when I bought it, which I have slowly been fixing, but I didn't notice that particular problem). As far as I know, the only thing running for those 2 weeks was the motion sensor porch light and the gas sensor alarm. When I went to check on things this morning, I found the battery completely drained (5.5v, I hope I didn't kill it). We had a lot of family in town, and so I didn't touch it for 2 weeks.
SOLAR BATTERY GUARD INSTALL
It is partially installed (charge controller, power distribution blocks, etc), but I haven't had time to install the solar panels yet. I've been installing a solar setup in my trailer.
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