Open Access Power Cost after charges with MSEDCL, TDL & Reliance DISCOM with Case Study

1. Sample Illustration for 5 MW – (Solar
Group Captive) LTOA/ MTOA Open Access
wheeling Transaction at various Voltage
levels for FY 18-19
Charges as Per APR
Orders
MSEDCL TPC REL
Transmission Charge/
KW/MONTH
MTOA / LTOA 253.82
Transmission loss
Compensation
3.92%
Wheeling Charges
(Rs./kWh)
33 kV 0.08
0.88 0.79
22/11kV 0.79
LT Level 1.18 1.81 1.53
Wheeling Loss
Compensation
33 kV 6.00%
0.90% 1.71%
22/11kV 9.00%
LT Level 12.00% 1.23% 8.28%
Cross Subsidy
Surcharge
Nil Nil Nil
Additional Surcharge Nil Nil Nil

2. Background workings for the Sample
Illustration
Parameters Case 1 Case 2 Case 3 Case 4
Generator Voltage(kV)
(injection Point)
66 33 22 11
Consumer Voltage (kV)
(drawal point)
33 22 11 LT
Open access at
generator end (MW)
5 5 5 5
Energy Injected (Mu) 9.00 9.00 9.00 9.00
Nature of Open Access MTOA/ LTOA MTOA/ LTOA MTOA/ LTOA MTOA/ LTOA
Cost of Generation
(Rs/kWh)
3.5 3.5 3.5 3.5

3. MSEDCL
Energy Drawn at
Transmission end (MU)
8.65 8.65 8.65 8.65
Energy Drawn at
consumer end (MU)
8.13 7.87 7.87 7.61
Amount Paid to
generator (Rs Mn)
31.50 31.50 31.50 31.50
Transmission Charge
(Rs. Mn)
15.23 15.23 15.23 15.23
Wheeling Charge (Rs
Mn)
0.69 6.83 6.83 10.20
Cross-subsidy surcharge
(Rs Mn)
0.00 0.00 0.00 0.00
Additional surcharge (Rs
Mn)
0.00 0.00 0.00 0.00
Total Charges Paid 47.42 53.56 53.56 56.93
Effective Rate (Rs/kWh) 5.83 6.81 6.81 7.48

4. TPC
Energy Drawn at
Transmission end (MU)
8.65 8.65 8.65 8.65
Energy Drawn at
consumer end (MU)
8.57 8.57 8.57 8.54
Amount Paid to
generator (Rs Mn)
31.50 31.50 31.50 31.50
Transmission Charge
(Rs. Mn)
15.23 15.23 15.23 15.23
Wheeling Charge (Rs
Mn)
7.61 7.61 7.61 15.65
Cross-subsidy surcharge
(Rs Mn)
0.00 0.00 0.00 0.00
Additional surcharge (Rs
Mn)
0.00 0.00 0.00 0.00
Total Charges Paid 54.34 54.34 54.34 62.38
Effective Rate (Rs/kWh) 6.34 6.34 6.34 7.30

5. REL
Energy Drawn at
Transmission end (MU)
8.65 8.65 8.65 8.65
Energy Drawn at
consumer end (MU)
8.50 8.50 8.50 7.93
Amount Paid to
generator (Rs Mn)
31.50 31.50 31.50 31.50
Transmission Charge
(Rs. Mn)
15.23 15.23 15.23 15.23
Wheeling Charge (Rs
Mn)
6.83 6.83 6.83 13.23
Cross-subsidy
surcharge (Rs Mn)
0.00 0.00 0.00 0.00
Additional surcharge
(Rs Mn)
0.00 0.00 0.00 0.00
Total Charges Paid 53.56 53.56 53.56 59.96
Effective Rate (Rs/kWh) 6.30 6.30 6.30 7.56