One metric for measuring requirements specification is “Correctness”. The correctness factor Cr can be calculated by Cr=R_c/(R_c+R_nv ), where R_c is the number of correct requirements and R_nv is the number of still not valid requirements. The metric Cr is used to measure percentage of requirements in the SRS that have been validated. What is the Cr of your workgroup project specification. Justify your answer.

An external consultant recommends that a plant installs a bank of capacitors for power factor correction. this will reduce the peak electrical demand charges by an average of 93 kw every month. the plant current pays $13 per kw in peak demand charges. the capacitor bank will include 223 kw of fixed capacitors, and 183 of variable capacitors. the fixed capacitors cost $59 per kw, and the variable capacitors will cost $65 per kw. the consultant charges 21% of the equipment costs to install the capacitors. because this project will reduce the demand for the electric utility, they are prepared to provide a one-time rebate of $42 per kw of reduced demand. what is the simple payback period for this project (in years)?