(2.3) You are part of a sustainability consulting team tasked with evaluating the feasibility of retrofitting an old office building to achieve net-zero energy status. The goal is to reduce the building's carbon footprint to zero by enhancing its energy efficiency and installing renewable energy systems. Your task is to calculate the Benefit-Cost Ratio (BCR) of this retrofitting project to assess its financial viability. You know the following information about this project: Total cost of retrofitting measures: $800,000, including:

You are weighing the economics of installing a triple-glazed energy efficient window system in your building. The following life cycle costs and savings are provided. The study period is 25 years, and the discount rate is 10%. Is this an economically viable approach based on the Savings-to-Investment Ratio (SIR)? Triple- Glazed Energy Efficient Windows: Window Quantity takeoff: 10000 sf Initial Cost: $100/sf Annual Operating Costs: $2.5/sf Annual Energy Saving: $10/sf

You must show all of vour calculation. You cannot use Excel to solve the problem. You need to show all the steps and process while solving the problem. Draw the cash flow diagrams properly. Improper drawn cash flow diagrams will be penalized.

You and two friends find yourself craving a fresh pizza while preparing for the final exam on the engineering economy. You can't spend time picking up the pizza and you have to have it shipped. 'Pick-up-Sticks' offers 1-1/4-inch thick (including toppings), 20-inch square pizza with your option of two toppings for $15 plus 5 percent sales tax, and $1.50 delivery fee (no sales tax on delivery price). "Fred's" offers Sasquatch round, deep-dish, which is 20 inches in diameter. It is 1-3/4 inches thick, contains two toppings, and costs $17.25 plus sales tax of 5 percent and free delivery. (1) What is the problem in this situation? Please state that clearly and specifically. (2) Apply the seven principles of engineering economy systematically to the problem you set out in Part (1) (3) If your common unit of measurement is dollars (i.e., cost), what is the better value for having a pizza based on the criterion of reducing cost per unit volume? (4) What other criteria might be used to select…