Huge jump in electricity rates

Back in August 2002, simple lang ang formula na ginagamit sa pag-compute ng bayad sa kuryente. This is how much we pay if we use 500KWh:

RATE: Residential
BASIC CHARGE
ENERGY (KWh) = 500 X 3.4 = 1700.00
CURRENCY ADJ. = 1700.00 X 6.11% = 103.87
PPA = 500 X 1.732 = 866.00
Power Act Redn. = 500 X -0.3 = -150.00

Total Current Amount = ENERGY + CURRENCY ADJ. + PPA + Power Act Redn.
Total Current Amount = Php 2519.87


Now fast forward to August 2004. Ganito na kamahal ang binabayaran natin for 500 KWh use of electricity:

RATE: Residential
Generation Charge = 500 X 3.3213 = 1660.65
Transmission Charge = 500 X 0.8975 = 448.75
System Loss Charge = 500 X 0.5493 = 274.65
Distribution Charge = 500 X 1.6615 = 830.75
Supply Charge = 500 X 0.5271 = 263.55
METERING CHARGE
Retail Customer Charge = 5 X 1 = 5.00
Metering System Charge = 500 X 0.2435 = 121.75
Lifeline Rate Subsidy = 500 X 0.0761 = 38.05
Interclass Subsidy = 500 X -0.713 = -356.50
**PowerAct Redn = 500 X -0.1493 = -74.65
CERA = 830.75 X 11.87% = 98.61
FRANCHISE TAX
National = 3310.61 X 2% = 66.21
Local = 3310.61 X 0.75% = 24.83
UNIVERSAL CHARGES
Missionary = 500 X 0.0373 = 18.65
Environmental Fund = 500 X 0.0025 = 1.25
=================================
TOTAL CURRENT AMOUNT = Php 3421.55

From Aug 2002 (500KWh) = 2519.87 to Aug 2004 (500KWh) = 3421.55, ang laki ng pinagbago ano?

Or a 35.7% increase from 2002. And it's going to get worse, because next month there's going to be another increase in power rates.