There is nothing the Liberals can do to reduce the cost of electricity.  They sign no-competitive deals and kept signing these deals and now we are stuck with the bill.  Let's look at their record:
"We will shut down coal-burning power plants by 2007"  It didn't happen until 2014, the same year as promised by the Conservatives.
"We will help Ontario homes and business reduce their costs and cut their electricity by consumption by at least 5% by 2007."  It didn't happen (but consumption did fall later as manufacturing moved to the US and household couldn't afford to heat their homes).
"we will give you better values for your money while keeping taxes down". Broken in the first budget.
" We will live by the balanced budget legislation" and "debt goes in one direction only: down" (HAH!)
And my favourite: "We will require that all future contracts signed by the government be subject to public scrutiny including calls to tender, successful bids, asset sales and long-term leases" (Samsung)