According to the World Energy Council, the average household in Mexico consumes about 1600 kWh of energy per year. In Monterrey, Nuevo León, Mexico, the GHI Solar Map suggests that the average annual solar energy potential is about 1800 kWh/m2 per year. If solar panels are available in sizes of 1 m × 1 m with an efficiency of 17%, how many panels will be needed to power a house in Monterrey for a year?   Question 10 options:   6   7   2   1

An energy storage system is being designed using a number of concrete blocks and electrically driven carriages, each carriage has a mass 10 000 kg, which can be raised to a certain height using electric motor driven trains using excess power from a combined solar-wind farm. Power is recovered using the same motors and releasing the concrete blocks and carriages. If the excess energy on one day is 2 GJ, the maximum height is 200 m and the efficiency is 100%, how many carriages are needed to store this energy (assume g = 10 m/s²). 4 B C O E 5 20 50 100 200

Calculate the efficiency (km/L) of a car that has traveled 150 kilometers in the past 4 days, using 35 kWh of energy per day. Group of answer choices 10.7 km/L 14.4 km/L 15.0 km/L 16.3 km/L

You are renting a car to take a road trip from Ottawa to Halifax, about 1400 km. The car rental agency will allow you to choose either the gas or electric version of certain car model and the mileage fee is the same for both. If you choose the electric vehicle, you will need to do about 200 km extra driving since you need to stray from the main route to find electric charging stations. Assume the effective energy prices are constant at $0.108/MJ for gas and $0.063/MJ for electric. Further assume that the force due to rolling resistance is 260 N and the force due to air drag is 270 N. What total price in dollars will you pay for energy for each of the car types to overcome just these two forces while making this trip?   Question 31 options:   $15.12 for gas and $10.08 for electric   $80.14 for gas and $53.42 for electric   $40.82 for gas and $27.22 for electric   $80.14 for gas and $46.75 for electric