1.0 Introduction
In many meter installations, it is becoming increasingly important to account for
the electricity that is both delivered and received. Delivered power is that which
is supplied to a facility by the Utility or ESP (Energy Service Provider.) Received
power is that which is sent back into the electrical service grid from the facility.
This would be the case if the facility had an on-site generator that can supply
power in excess of what the facility requires. Many utilities will either purchase
this extra power at wholesale rates, or give the consumer credit for the received
power on his next utility bill.
The Green Class Net Meter is designed to display the “Net” result of the energy
used by the consumer. The received power is automatically subtracted from the
delivered power. In certain cases, where the consumer sends more power into
the grid than the utility has supplied, the meter is capable of displaying negative
kWh information.
In addition to the meter’s display, which will show delivered kWh, received kWh,
net kWh, net kW, total CO2 and CO2 load, the Green Class Net Meter records
15 minute interval data that can be used by the E-Mon Energy automatic meter
reading system to provide graphing and charts that detail energy usage and fl ow.
The software also utilizes a spreadsheet approach to customizable billing and
accounting. Net metering interval data is supplied for both the delivered and the
received power, making it a very valuable tool in this type of application.
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