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Sizing up Solar Panel(s) for our lithium Battery
Recommendation:
Solar Panel Wattage: Minimum 350W
Charge Controler: MPPT
Optimal Azimuth Angle: 11.4 degrees East of Magnetic South
Tilt: From Horizon 28.8 Degrees.
Peak Sun Hours
The calculation for Peak Sun Hours in the San Dimas area yeilds 2.7 Hours. Rounded up to 3 Hours.
Source:
https://footprinthero.com/peak-sun-hours-calculator
Charge Time
The Objective is to have a Charge Time Equal to or Less Than Twice the Peak Sun Hours as Established at the installation Site. This Means a Charge Time in the Range of 3 to 6 Hours. This is considering a starting battery Condition of 50% D.O.D
Charge Time Calculator
Here is where you can find the Charge Time Calculator:
https://footprinthero.com/solar-panel-charge-time-calculator
I ran two senerios:
#1. With Solar Panel Wattage at 700W Charge Time is equal to 2.7 Peak Sun Hours.
#2. With Solar Panel Wattage at 350W Charge Time is equal to 5.2 Peak Sun Hours.
Considering available space at the installation site and financial concerns Senerio #2 appears viable.
Accessories
Solar Charge Controller Type:
MPPT Prefered (Maximum Power Point Tracking Controler)
Postioning & Tilt
Optimal Azimuth angle is True South, 11.4 degrees East of Magnetic South or 168.6 Degrees Clockwise from Magnetic North.
Tilt: From Horizon 28.8 Degrees.
Source:
https://footprinthero.com/solar-panel-tilt-angle-calculator
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