Enlighten me on what you mean by decrease in price almost
matches the increase in price.
The increase was based on forward oil price of US$110+ if I
don't remember wrongly. So if oil prices are now down to <
US$50, how does it seem reasonable to you that the price only came
down by 25% when oil prices have dropped by > 50%?
If oil price is zero, electricity price drop to zero? there are
other factors than the price of oil, such as the salary of the
workers converting the oil, cost of maintaining the power plant and
so on.
still, oil is a major factor in the pricing. since you mentioned
forward price was used to calculate the last increase, what is the
forward price now? is it also <50? cos current price is not
equal to forward price.