Please read the question, the clue in the question states to provide an assumption of missing values of the entites bekng used

Question 4 A car company installed 4kW photovoltaic solar panels in their offices in the UK, in 1999. After 10 years, the solar panels used became outdated and therefore were removed from the offices What is the NPV of the investment? Present the step by step solutions and explain your working. CLUE: a number of entities are missing, for example: price for the installation, yearly savings and opportunity cost of capital. You have to undertake research/assume to find reasonable values for the missing quantities. In the case of using assumed values, explain how you got to the conclusion