Building a 2 MW Energy Storage System 

Amazing......

How many solar panels would be needed to charge a 2mWh hour storage system in 1 day. Assuming one small 2'x4' panel is 400 watts, how many 400 watt panels would be required? A ballpark guess would be cool.

¿What is the cost?

Not much of a firewall there between your battery modules... Might want to run an FMEA there guys

you need to adjust the content

the video image is too poor, you need to fix it more

Wtf? No way

the video image is too poor, you need to fix it more