Based on the specs of your new home's HVAC, pool pump, how much you drive your EV's, the location, and how cool you like your home, you should be able to get a fairly good estimated usage. Once again, I strong suggest finding a reputable installer to plan this out. But depending on how this is done (e.g line side versus load side) there can be limitations depending on the size of your load center. If you have multiple inverters, they would be wired in parallel to your main panel. For example, Tesla uses their own standard, and the L1/L2 current capabilities keep changing. EV charging standards are changing pretty rapidly so I won't want to be tied into the technology in the SE offering. Personally, I'd steer clear and just get separate EV chargers installed in or near my garage with dedicated 240V circuits (2x30 or 40amps). There's nothing magical about the SE combo inverter/L2 charger. Will your inverters be installed in your garage (or wherever your EV's are located)? If not, then they won't help you very much for charging. HVAC, Pool Pumps, and especially EV can use a lot of electricity - if you drive a lot. If you are planning to grow the array in the future - or for a more accurate reflection of the size of the system you'd need - you'd be closer to 2 x 7,600W or even 2 x 10,000W. The HD series is still just as subject to clipping (in some cases more so) than the older series when a high DC to AC ratio is used. Even though the HD series in theory supports a higher DC to AV ratio than the older series, if you live in a sunny location, have little or no shade, and your roof is fairly well oriented / laid out for solar, this won't really help you. While the "HD" series of inverter software seems to have been improving as of late, as a relatively new product line, it seems to have had a number of issues over the past couple years. But, you should be in the 15-20 MWh per year ballpark if you have good sun, and your roof faces due South, and it's pitch is 25-35 degrees. For example SolarEdge Site Designer which is free on their website. There are numerous software tools you can use to estimation the productivity of an array (in annual MWh) based on your location, roof orientation and angle, and system size. My 12kW array doesn't fully offset a load anywhere near what you are suggesting. Given all of the loads you've indicated, it's unlikely your 11kW array will be big enough. So most people decided it's not really cost effective. While adding panels after the fact is certainly possible, it generally requires a repeat of most/all of the application, inspection processes. I doubt they'll be very keen to used a used inverter and if they do, are unlikely to warranty it. Hopefully you've identified a reputable solar installer to design and install your PV system. If I go to a 2 inverter system, how are the house loads connected to them? I presume in series (one main panel) rather than parallel (2 separate panels). How much power, greater than load demand, do I need to generate from my arrays to enable the solar boost mode in these inverters?ĥ. What is the SE part number for the EV charger and does anyone have an installation manual for the EV charger kit?Ĥ. Do I need to buy the SE EV charger kits, which are rather expensive, or can I connect a cable with appropriate size wire and connector such as:ģ. With 2 EV cars, would it be better to install both a SE7600H and SE3800H than one SE11400H, so that I can charge 2 EVs at once with solar boost? (The EVs that I am looking at can charge at 40 amps).Ģ. I read that I can also connect a EV charger kit to the SE3800H-US inverter. I am not sure what my usage will be, so I will start with an oversized array and the SE7600H and add more panels if neededġ. My all electric home (under construction) will be > 3300 sq ft with AC in a very sunny but warm location (with very expensive electricity rates), with heated swimming pool (10x58') and 2 EVs with > 50 kwh batteries. I plan to use it with a new solar array (>11 kw) and do EV charging.
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