any grid tie battery storage units I can buy and install myself that quality for 30% fed tax credit?

webpage below lists several companys that sell batteries, but seems like almost all are either only sold when installed with solar panels by a partner OR not available in USA yet.
which brings me to my question: are there any gridtie back up batteries I can buy and install myself? obviously I can make my own, but not sure if that would qualify for the fed 30% tax credit. 

https://www.businessinsider.com/rechargeable-battery-options-compete-tesla-2017-5#8-powervault-is-an-at-home-battery-system-that-is-sold-in-the-uk-all-units-come-with-an-inverter-included-and-the-most-powerful-model-stores-6-kwh-of-energy-prices-start-at-roughly-3000-17