You are serving as an expert witness for the city council of a community. The council is exploring the concept of providing the electrical needs of the community by building a facility with photovoltaic cells to convert sunlight to electric potential energy. But they are facing resistance from members of the community, who claim that there is not enough open land in the community to build such a facility. The opposition is building toward a lawsuit, which the city council wants to avoid. The community requires 2.00 MW of power, and the best photovoltaic cells on the market at the time have an efficiency of 30.0%. In your community, an average intensity of sunlight during the day is 1,120 W/m2. The council members have no idea how much land is needed, so they have asked you to estimate the area of land (in m2) that must be found to construct this facility. (Assume the given average intensity of sunlight is only available for eight hours a day.)

What is the efficiency of typical commercial photovoltaic cells in converting sunlight into electricity?*1 point10-20%30-40%50-60%70-80%

What is this Article primarily about?A.Off-grid solar power is changing lives in remote areas of Africa by bringing electricity to places where it was once thought unattainable.B.Customers of the Uganda-based company Fenix are allowed to pay a fee upfront for their kits and then make small payments until the debt is paid off.C.Only 30 percent of the more than 50 million people in Kenya have a television, so walking miles to watch the news on TV is a common practice.D.The company Green Village Energy installed 126 solar panels in Bisanti, Nigeria, powering the entire town.

The value of reducing energy consumption in buildings has increased worldwide. This is because the consumption of fossil fuels in a building is as much as in other industries, also among buildings, the consumption of commercial-office buildings has a higher energy consumption; Therefore, the adoption of energy efficiency techniques in the construction and operation of buildings will play an essential role in creating sustainable cities in the future, and for this reason, green building standards such as IgCC, ASHRAE 189.1 and LEED are expanding. At the same time the advancement of technologies such as electric cars and solar cells, incredibly transparent solar cells for generating electricity are being witnessed. In this research, based on building energy simulation techniques, a commercial-office building has been investigated based on green building standards, considering the presence of electric cars and transparent solar cells. This research shows that the building with two scenarios of solar panels on the roof will be reduced by 9% and with transparent panels for electricity production by 18%. Also, the return rate of the first scenario is five years and nine months. The return rate of the second scenario is approximately six years and two months, which will decrease to 2 months and 20 days for the first scenario and three years and three months for the second scenario with the implementation of government incentive policies. Another finding was obtained through the intelligentization of electric car charging costs. It showed that if electric car charging stations are used in the building in three different states, including buildings without solar panels, building with the presence of solar panels only on the roof, and building with solar panels on the roof and transparent solar panels on the windows is 10%, 20% and 30% less than the cheapest commercial electric car charging station.

Multiple Choice QuestionPhotovoltaic cells are about 15-20% efficient, which means they Blank______.Multiple choice question.only work 3.6-4.8 hours per dayconvert a small amount of received sunlight to usable energyonly receive a small amount of the solar energy available

Which statements about solar electricity are true?Multiple select question.Solar electricity is the least expensive way to generate electricity in sunny locations.Most of the United States now relies primarily on solar electricity.Falling solar-electricity prices are providing a strong incentive to move toward electric vehicles.The cost per watt of producing solar electricity has risen by about 10% per year since the late 1970s.