A family of five is planning to install solar panels on the roof of their home to help reduce the cost of electricity and save energy to help the environment. The family plans to install 10 panels, each with a power rating 600W. On average, a solar panel can produce electricity for 4.5 hours daily. Assume the average cost of electricity is 5.5 cents per kilowatt-hour. How much money will the family save in a year on their electrical energy bill?

A family of five is planning to install solar panels on the roof of their home to help reduce the cost of electricity and save energy to help the environment. The family plans to install 10 panels, each with a power rating 600W. On average, a solar panel can produce electricity for 4.5 hours daily. Assume the average cost of electricity is 5.5 cents per kilowatt-hour. How much money will the family save in a year on their electrical energy bill?

Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)

10th Edition

ISBN:9781337399128

Author:Russell E. Smith

Publisher:Russell E. Smith

Chapter2: Basic Electricity

Section: Chapter Questions

Problem 34RQ: What is the Btu/hour output of an electric heater rated at 15 kilowatts? a. 51.15 Btu/hour b. 51,150...

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A family of five is planning to install solar panels on the roof of their home to help reduce the cost of electricity and save energy to help the environment. The family plans to install 10 panels, each with a power rating 600W. On average, a solar panel can produce electricity for 4.5 hours daily. Each person in the family uses electrical energy at an average rate of 2kilowatt-hour per day. Will they still need to buy electricity from an electrical energy supplier? Explain your reasoning.
Should You Buy an Electric Car? Do the math. This article says that the EPA rating for the Nissan LEAF is exactly 30 kWh per 100 miles Assume you drive 15,000 miles per year Assume you pay 7.8 cents per kWh (kilowatt-hour) Assume your current vehicle gets 32 miles per gallon and gas cost $2.50 per gallon Which is cheaper to drive, your current vehicle or the Leaf?* What else should you consider before purchasing an electric vehicle? Ready to decide? Make an argument for either keeping your current vehicle or for getting an electric vehicle. Don't have a car? Make an argument for using public transportation and ride-sharing services.
A farm has a monthly consumption of 400 kWh, where all energy consumed is generated through of biogas. Consider that 1m3 of biogas is equivalent to 1.4 kWh. In the calculation, consider that the raw material of the biodigester will consist of swine manure that produces 4 kg of manure each, with retention time in the biodigester for 45 days. What is the daily biogas consumption to serve this residence and how much waste is needed daily?
A pot of water is heated by transferring 1676 kJ of heat energy to the water. If there is 5.00 kg of water in the pot, and the temperature is raised by 80.0 K, what is the specific heat of water in J per kg Kelvin? Your answer
Based on the given picture below, answer the following questions. a. What is the maximum voltage where you should connect its socket? b. How much voltage is produced by this charger in a laptop battery? c. How much resistance is offered by the charger itself? d. What is the power of the charger in kW? e. If you will use the charger for 3 hours, how much energy is consumed in Joules?
Question 5 A natural gas plant with a 50MW operates at an average loading of 75% year round. How many kWh does the plant to supply to the grid? Question 6 For Question 5, the natural gas power plant costs $175,000,000 to build and costs $20M a year to operate. What is the average cost per kWh or MWh for the power produced if the estimated plant life is 20 years? Assume a discount rate of 5%.
9. A university campus has 200 classrooms and 400 faculty offices. The classrooms are equipped with 12 fluorescent tubes, each consuming 110 W, including the electricity used by the ballasts. The faculty offices, on average, have half as many tubes. The campus is open 240 days a year. The classrooms and faculty offices are not occupied an average of 4 h a day, but the lights are kept on. If the unit cost of electricity is $0.11/kWh, determine how much the campus will save a year if the lights in the classrooms and faculty offices are turned off during unoccupied periods. Draw a figure or FBD that will support the problem. Explain each step by step formula.
A family consumes 15×103 kg of hot water per month and uses an electrical resistance heater to raise water temperature form 20oC to 55°C on average. Assume the cost of electricity is $ 0.01/kWh and the efficiency of the electric heater is about 93 percent due to the heat losses. (a) Determine the annual electricity bill due to water heating. (b) If the family installed a solar water heater (SWH) that supplies the required hot water for 8 months on average (the other 4 months account for cloudy days), what would be the annual saving?
a compact fluorescent lamp uses less energy than its equivalent incandescent bulb.how much will a person save if he/she uses a 20 cfl instead of a 100 w incandescent lamp for 6 h in 30 days? electricity is priced at p 8.17/kwh
A small plant has been constructed and the costs are known. A new plant is to be estimated with the use of the exponential (power sizing) costing model. Major equipment, costs, and factors are as shown in the shown table. (Note MW = 106 Watts.) If ancillary equipment will cost an additional $200,000, find the cost for the proposed plant.
An electric heater can be modelled as a resistor. In Turkey heaters are designed and sold for 220V mains. Let us connect an electric heater to a 220V plug. The total power of the heater is 2kW. What is the current through the heater? If the heater is used in a country, where the mains voltage is 110V, what power is dissipated on the heater?
We were asked to calculate the consumption of each person's residence, so let's assume that everyone has the same appliances and the calculation is for 30 days. Shower of 7500 W, 7 min of daily use, 5 people.500 W TV, 6h of daily use. Air conditioning 1300 W, 8h of daily use in summer. Consider the electric energy tariff of R$ 0,49/KWH.