As a project engineer tasked with deploying electric vehicles $($EVs$)$ in NESH council to achieve zero emissions by $2030,$ it has been planned to initially install $10$ charging stations. The total cost for design and construction is $$200,000.$ Annual operational costs amount to $$5,000,$ with replacements required every four years costing $$4,000$ each time. The average usage involves $15$ EVs per day, with each session consuming an average of $30$ kWh$.$ This average daily usage is expected to increase annually by $5\%.$ Considering a project lifetime of $10$ years and a discount rate of $30\%,$ please propose an appropriate user fee for charging electric vehicles. Note that the user charge is typically denoted as $$/$kWh$.$