Lighting Swap: Watts Saved × Hours, Payback per Bulb and the Whole-Home Total
This lesson is part of the course
In this lesson
You calculate the kWh and money saved per year by replacing old fictional bulbs with low-watt ones in five rooms, the payback in months per room and the saving for the whole home.
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Lessons in this course
- Watts to kWh: Daily, Monthly and Yearly Running Costs at a Fixed Tariff Locked
- Cost per Cycle: Washing Machine, Dishwasher and Dryer Programmes Locked
- Standby and Always-On Devices: 8,760 Hours a Year, Annual Cost and the Biggest Users Locked
- Fridges & Freezers: Old vs New Annual kWh, Savings and Payback Years Locked
- Cooking Options: Oven vs Smaller Appliances per Meal and the Monthly Difference Locked
- Lighting Swap: Watts Saved × Hours, Payback per Bulb and the Whole-Home Total Locked
- Time-of-Use Tariffs: Shifting Loads to Cheaper Hours and the Saving per Month Locked
- Your Home Energy Plan: Every Appliance in One Table, Costs by Category and a Chart Locked