Hi Product Hunt, I'm Sean. I built Kilowhiz myself, and I still use it for my own home in the Houston area.
In most of Texas you choose your electricity provider from a long list of plans. Every plan has an Electricity Facts Label (EFL). It shows the plan's price at three amounts of use: 500, 1,000 and 2,000 kWh a month. Your home uses its own amount, and the EFL doesn't show the price there.
Kilowhiz reads your meter, prices every plan sold at your Texas address, and tells you which one wins, before you sign. A plan's advertised price is for a sample home, and yours lands between the columns. Your assessment is free. PUCT Broker Reg. No. BR260211