How is Energy calculated in Enercept and Energy Meters using the Integer registers?

Issue
When communicating Modbus how to get the correct energy reading in the Enercept meter?

Product Line
Enercept meter
Energy meter

Resolution
Energy is stored over a 2 16 bit registers. Like all the Integer registers in the Enercept/Energy meters, a multiplier must be applied.
The multiplier for the Least significant register(LSR) is used.
Below are two examples with a 3020E012(100A model):
Firstly, the multiplier for the 100A Enercept for the register 1 is 0.0078125

Register: Decimal Value -> binary value
1: 1769 -> 0000011011101001
2: 204 -> 11001100

32 bit 110011000000011011101001 as an integer yields 13371113
Multiplied by the 100A multipler, 13371113 * 0.0078125 = 104461.820 kwh

OR mathematically represented:

Register: Decimal Value -> binary value
1: 1769 -> 0000011011101001
2: 204 -> 11001100

(204*65536+1769)*0.0078125 = 104461.820 kwh

Integer Register Multipliers can be found in What are the Integer Register Multipliers for the Enercept Meter and Energy Meter?