Green Features:
   elecric car: $30,000​
   home charging station: $5,000​
      will save $1,000 per year in fuel costs
           - emits no pollutants into the atmosphere
   solar panels: $10 per watt
          -nonpollutant
          -energy from the sun is free
  green roof: $15 per square foot including waterproofing and plants
           -provides thermal insulation
           -improves quality og water and air
   solar hot water panels : $8,000
      saves about 60% -70% on annual hot water bill
           -increased amount of hot water
           -lower cost to heat water