Like it or not, adulting and managing a house does come with a lot of research work (which I don't exactly enjoy) Since the work has already been done, I thought why not just share what we know so that future homemakers can have a easier time by just following the series.
For your power supply, you have a few retailers available. You can either choose a fixed price or a % off the regulated tariff amount (which may have some fluctuations). Personally I prefer things that are fixed cos your spending is more consistent and it is easier to manage the cashflow. However, this time round we actually picked a discount off the tariff amount because the discount is more significant.
You can do a comparison among the different power retailer here. Sembcorp power falls under the Top 3. We picked it because it has a few tie-ups with the banks. We are Citi Credit Cardmembers so we get to enjoy an additional $60 bill rebate.
To make all your lives easier, here's the referral code "2XBM6AE6" you can use to enjoy the additional $20 rebate. We took quite a while to find someone to refer us. So you are welcome, just use our code :P