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We settled on a 5,000 Watt Quattro Inverter Charger from Victron. 28KWH LITHIUM BATTERY BANKĪ key part of us savings tons of money were buying 280AH cells shipped directly from China. We knew the BMS would only have 16 cell inputs so we opted for 32 total batteries, grouping them in packs of 2. This also helped keep our wire size down as we had a fairly long run from the ground mount to the charge controllers (over 100’).
OFF GRID POWER SERIES
7,200 WATTS OF SOLAR POWERīy connecting 240w panels in series of 5, we could create high voltage arrays that charged well even in cloudy conditions. Feel free to use it as a reference when designing your own system.
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This is the size we chose based on our needs. And the second is right here! Sizing our Off-Grid Solar Power Systemīefore we talk cost, let's talk sizing because as you know the amount of solar and battery storage you build will have a big impact on your bottom line. The first question can be answered by this exhaustive installation and wiring guide article.
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This would house all our power and electrical gear for our solar power system, and double as an office and guest room.Īs you can imagine, we got asked a lot how we put the system together and how much it cost. And then our very first structure - a hyperadobe earthbag solar shed office. Since re-locating to our off-grid desert homestead property a couple of years ago, we've been busy with all sorts of important infrastructure level projects.įirst was our high tensile electric fence. How much did it cost us to build our own 7200W 28kWH 5000W 120V Off Grid Solar + Lithium Battery power system? Less than you think.