Electricity Consumption and Billing Quiz

Study Notes

Understanding electrical bills is important because electricity is a primary form of energy, and we pay for its consumption every month.
Electricity bills are typically broken down into sections: total kilowatt-hours (kWh) used, generation cost, and the total amount due.
The rate per kWh is the cost to generate electricity for one hour, and it can be found on some electricity bills or calculated from the total bill and total kWh used.
High voltage alone is not dangerous; it's the current, the flow of electrons, that poses a threat.
A low current from a low voltage source can still be fatal.
The electrical power formula is P = V x I where P is power in watts, V is voltage in volts, and I is current in amps.
Most household appliances have a power rating labeled on them, either in watts (W) or kilowatts (kW).
If the power rating is not given, it can be calculated using the voltage and current: P = V x I.
Energy estimation involves using existing data to make educated guesses about energy consumption based on certain assumptions.

The project aims to understand the energy consumption of household appliances and propose ways to reduce electricity bills.
The project requires students to:
- List 10 appliances and their power ratings.
- Determine the daily use time for each appliance for one week and calculate the total weekly consumption.
- Obtain the rate per kWh and effective rate per kWh from their household electricity bills.
- Calculate the estimated total cost of energy consumption per item per week.
The goal is to save at least P180.00 from the monthly electricity bill by reducing energy consumption.
Students should use the effective rate per kWh to calculate their savings.
The estimated savings should be calculated in kWh and pesos.
The project should include a timeline for achieving the P180.00 savings goal.

Air conditioners, clothes dryers, refrigerators, flat irons, desktop computers, televisions, and incandescent light bulbs are among the biggest electricity consumers in a household.
Even when computers are in sleep mode, they still consume energy.
Standby power, also known as "vampire power", refers to the energy that electronic devices consume even when they are turned off.
A spreadsheet can be used to organize and calculate the energy estimate data (a sample spreadsheet is provided in the resource link).
Light bulbs of different wattages can be treated as separate items in the energy estimation.
Teachers can adjust the project requirements and assessments as needed.