All water, electricity, rubbish, phone, internet, cable TV bills can be paid in the local post office or bank. Alternatively, water and electricity can be paid directly to the company. Some banks offer the possibility to automatically pay your phone or electricity bills from your bank account.
You can find more details regarding the price of electricity on this link http://www.epcg.co.me/en02_01.html
More information on the phone and internet options can be found at http://www.t-com.me/