Different modes of connecting solar power plant with grid and energy accounting

1. DIFFERENT TYPES OF ENERGY METERING MODES
1.NET METERING
2.GROSS METERING
3.UTILITY SCALE METERING

2. NET METERING
Net metering is a billing mechanism in which a ON-GRID Solar Power Plant owner
generates electricity from solar for its own captive consumption and if required demand
is less than the generated solar energy than the excess energy is transferred to the grid.
The DISCOM pays the owner for this feeding of energy to the grid at rates decided by the
DISCOM.
CFA (subsidy) and Tax benefits are provided by the Government to such type of users.
Restrictions on usage of Distribution Transformer Capacity.
It is generally done at low voltage levels i.e. 230 V and 415 V and is connected to the
secondary side or LV side of the Distribution Transformer.

3. NET METERING
dDiscom line or Discom Grid

4. NET METERING
d

5. DISTRIBUTION TRANSFORMER
d

6. DISTRIBUTION TRANSFORMER
d

7. GROSS METERING
Gross metering is a billing mechanism that credits solar energy system owners for
the electricity they add to the grid.
There is no consumption of solar energy by the Plant owner, all the energy generated is
fed to the grid.
The DISCOM pays plant owner as per Power Purchase Agreement.
Most of the Government Buildings are opting for this type of system.
One can lease out his/her premises for Power Plant installation.
No CFA applicable for this type of system but one can gets tax benefits (AD)
Restrictions on usage of Distribution transformer full capacity.
It is generally done at low voltage levels i.e. 230 V and 415 V and is connected to the
secondary side or LV side of the Distribution Transformer.

8. GROSS METERING
DISCOM LINE OR GRIDD

9. GROSS METERING

10. GROSS METERING

12. UTILITY SCALE METERING-MW SOLAR POWER PLANTS
Gross metering is a billing mechanism that credits solar energy system owners for
the electricity they add to the grid.
There is no consumption of solar energy by the Plant owner, all the energy generated
is fed to the grid but plant owner draws electricity for its own captive consumption
during day and night.
The DISCOM pays plant owner as per Power Purchase Agreement.
Large scale power consumers are opting for this type of system under open access.
One can lease out his/her premises for Power Plant installation.
No CFA applicable for this type of system but one can gets tax benefits (AD)
No Restrictions on usage of Distribution transformer full capacity.
It is generally done at High voltage levels i.e. 11 kV and above and is connected to
the secondary side or LV side of the PowerTransformer.

13. UTILITY SCALE METERING-MW SOLAR POWER PLANTS