Icom IC-FR3000 Series Sales Handbook - page 64
Solar Powered Repeater System
Calculate Your Total Daily Amp Hour usage
AC Loads
List AC load items
Quantity
X
Watts
X Hrs/week = Wh/week
Total Wh/week
- ①
DC watt hours per week. Multiply line ① by 1.15 to correct for inverter loss.
- ②
Inverter DC input voltage; This is DC system voltage.
12
- ③
Divide line ② by line ③. This is total amp hours per week used by AC loads.
- ④
DC Loads
List DC load items
Quantity
X
Watts
X Hrs/week = Wh/week
In order to design a solar power system you will have to first determine your estimated electrical needs.
Determine How Much Electricity You Will Use
•
Calculate Your Total Daily Amp Hour usage
•
Calculate how many Solar Panels you will need
•
Calculate what size of Batteries you will need
Solar power system
64
Total Wh/week
- ⑤
DC system voltage.
12
- ⑥
Total amp hours per week used by DC loads. Divide line ⑤ by line ⑥.
- ⑦
Total amp hours per week used by AC loads from line ④
- ⑧
Add lines ⑦ and ⑧. This is total amp hours per week used by all loads.
- ⑨
Divide line ⑨ by 7 days. This is total average amp hours per day.
Daily Amp Hour Usage =
- ⑩
Calculate how many Solar Panels you will need
Total average amp hours per day
- ①
Divide line ① by 0.8 to compensate for loss from battery charge/discharge
- ②
Average sun hours per day in your area
- ③
Divide line ② by line ③. for total amps required
- ④
Multiply line ④ by 1.15 to correct for generating loss.
- ⑤
Continuous non-sunshine days in your area
- ⑥
Multiply line ⑤ and line ⑥ for total solar array amps required.
- ⑦
Peak amps of solar module used
- ⑧
Total number of solar modules in parallel. Divide line ⑦ by ⑧.
- ⑨
Round off to the next highest whole number.
Number of Solar Panels=
- ⑩
Calculate what size of Batteries you will need
Total average amp hours per day
- ①
Divide line ① by 0.8 to compensate for loss from battery charge/discharge
- ②
Continuous non-sunshine days in your area
- ③
Multiply line ② and line ③ for total Wh required.
- ④
DC system voltage.
12
- ⑤
Divide line ④ by line ⑤ for required Ah.
- ⑥
Safety factor
2
- ⑦
Multiply line ⑥ and line ⑦ for total battery capacity Ah required.
Battery Capacity=
- ⑧