If Gordon Moore’s Law is something to go by, the extraordinary processing leap in smartphone and other mobile gadgets has proved extraordinary: except for one particular little thing – lithium ion battery! And btw, yes, you do want to convert DC to DC when going from a PV array to a battery, at least if you want to so somewhat effectively the PV maximum energy voltage will almost never ever precisely match the battery charging voltage. But if you have a SolarEdge inverter, I bet you have MPPT optimizers and what you need to have is the grid transfer switch and the right hook up to automatically switch to battery backup when the grid goes down. I am also hopeful that flow batteries can compete well in the future as projected, but the present $ based on the Deutsche Bank report is clearly much higher.
Appears to me like there are a number of Tesla partners carrying out specifically that and they have set up an entire system for that. The #1 most important function is the automatic DC disconnect situated on the battery that will reduce the connection from the charging supply if any of the Lithium Iron cells are not adequately charging or discharging. If your battery only had 1000 cycles you can have three days worth and it will only final about 8 years so. but 5000 cycles is a entire new ballgame. The battery is rated for 2C. Its 1C rate is 2x 3.1A. So it ought to be very good for additional than the 8A rating, or about 12A.
The battery output straight feeds an external inverter to develop AC in a compete system. The aggressive method of Tesla (and Solar City) tends to make a lot of investors fairly uncomfortable-unless, of course, they take a quick position! You thereby intentionally improved the cost of the battery compared to Teslas (in which you own stock). All this stuff will be professionally installed, solar modules, optimizers, and the DC-DC, and converter which are incorporated in a created package. I’ve observed it noted many occasions in various threads that you perform for a flow battery business.
However, and this is important, price per kWh is really not suitable way to appear at battery pricing – rather, a single should appear at the levelized expense of power over the lifetime of the system, which can vary depending on the traits of the specific battery chemistry, the application use case, and other factors. Like other individuals quoted, JLM is glad to have increased visibility for battery storage and looks forward to improved transparency with all providers. Solar inverters also unidirectional — it makes no sense to want to feed power to the PV array — so will be unable to charge the battery.
I never fault them for it. For instance appear at the difference involving solar developers at the edge of the busy markets such as Cali ($2.50-$three.50 a watt) and then try to acquire solar for your property in a state with small one-off developers who will charge you $5-six a watt installed. On large, robust grids, when solar is introduced, storage requirements decrease, because solar meets peak afternoon demand. The 7kwhr $3000 everyday charge battery is the only a single that could possibly make any sense for solar. The writer mistook the SolarCity rep, Bass, comments to mean SolarCity was rejecting Teslas battery.