Laboratory Activity-Batteries Load Off-grid solar power systems (Links to an external site.)Links to an external site.: Part 1: ï Watch the Video.https://www.youtube.com/watch?v=P2XSbDRi6wo (Links to an external site.)Links to an external site. Part 2: ï Scroll to the section titled “Designing/sizing an off-grid solar power system” Step 1 : Work out your power needs ï Refer to your electric bill and determine your power needs. The electric bill should include a Kwh/day or Kwh/month rating. Convert to watt-hours/day and move on to step 2. Only use the spreadsheet if you do not have access to your electric bill. Step 2 : Sizing Battery Bank Determine the capacity of the needed battery bank in Amp-Hours for each of the nine (9) scenarios listed below. Include three different bar graphs in your Lab Report. One for each group of scenarios (e.g., Days without Sun, Depth of Discharge, Temperature) plotting the Amp-Hours.