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.
Question
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.
Solution
This passage discusses the importance of reducing energy consumption in buildings, particularly commercial-office buildings, due to their high energy usage. It highlights the role of green building standards like IgCC, ASHRAE 189.1, and LEED in promoting energy efficiency and sustainability.
The research focuses on a commercial-office building, considering the use of electric cars and transparent solar cells. The findings show that the use of solar panels on the roof can reduce energy consumption by 9%, and the use of transparent panels for electricity production can reduce it by 18%.
The return rate for the first scenario (solar panels on the roof) is five years and nine months, while for the second scenario (transparent panels for electricity production), it is approximately six years and two months. However, with government incentive policies, these return rates can be significantly reduced.
The research also explores the cost-effectiveness of using electric car charging stations in the building. It finds that the cost of charging electric cars in the building is 10%, 20%, and 30% less than the cheapest commercial electric car charging station, depending on whether the building has no solar panels, solar panels only on the roof, or solar panels on both the roof and windows.
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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 the current efficiency solar cells
Which of the following is a key factor in reducing energy consumption in a building?a) Using reflective roofing materialsb) Having more windows for natural lightc) Keeping exterior doors opend) Installing single-pane windows
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