Skip to main content
Mission 6 · 3–5 minutes

Become energy smart

Put it all together. Three decisions for one household, each using an idea from the earlier missions. No catches, and you'll see how each answer is worked out.

The household

Meet a household with a heater, a dishwasher, a kettle and a TV, rooftop solar with no battery, and a flat-rate plan. They have three decisions to make. Use what you learned in the earlier missions. Answers are worked out from the same assumptions as the other lessons.

0 of 3 questions answered

They want to cut about 2 kWh from their daily electricity use. Which single change gets closest?

Make a prediction first, then reveal the answer.

Their usage stays at 500 kWh a quarter, but their rate rises from 25c to 30c per kWh. By roughly how much do their usage charges rise?

Make a prediction first, then reveal the answer.

With rooftop solar, no battery and a flat-rate plan, when is it cheaper to run the dishwasher?

Make a prediction first, then reveal the answer.

Understand the science

Want to learn more? The articles go deeper on how it all works.