Austin Solar 2010

Austin Solar 2010

• 1.
  A Conversation aboutSolar Mike Saavedra 925 639 8714 [email_address]
• 2.
  Our Discussion TodayCurrent Home Assessment How much energy you currently use and what you are paying per kWh Opportunity for savings with energy efficiency measures Choosing the best PV System Best value Maximum power output Estimated Benefits Annual electric bill savings Payback period of your PV system example
• 3.
  NABCEP Certified EnergyPractitioner Energy Efficient Structures Specialist Solar Thermal Trained NEC and Industrial Safety Certified Member of SEEN (Solar Energy Entrepreneurs Network) Digital Media and Networking Consultant for Renewable Energy Industry Construction volunteer with Habitat for Humanity of Austin My Background
• 4.
  Monthly Use andCharges kWh (kilowatt hours) Charges Current Use: $1557/year & 14,158 kWh example
• 5.
  Energy Efficiency Opportunitiesto Save Energy Efficiency Energy Star Appliances AC efficiency Home Improvements Solar Screens Duct Work Light bulb replacement example
• 6.
  Roof Orientation 200 20 0 example
• 7.
  Options for installingPV based on your home analysis A best value solution A maximum power solution Both designs will connect to the utility grid Both options will result in savings to your monthly electricity bill PV System Options example
• 8.
  Option 1: BestValue 0 example
• 9.
  Option 1: BestValue 0 example PV Watt yearly output = 4.4 kWh PV Watt yearly energy value = $483 PV payback period = 8 years 31% of the annual energy bill Suntech 175W modules 18 modules X 175 watts = 3.15 kW Cost at $5.50/watt = $17,325 Cost after 30% federal tax credit = $12,127 After $2.50/watt Utility rebate = $4,252 Roof pitch = 30, Azimuth = 200
• 10.
  Option 2: MaximumPower 0 example
• 11.
  Option 2: MaximumPower 0 example BP 190W modules PV Watt yearly output = 9.3 kWh PV Watt yearly energy value = $1,025 PV payback period = 12 years 66% of the annual energy bill 49 modules X 190 watts = 9310 watts Cost at $5.50/watt = $51,200 Cost after 30% federal tax credit = $35,840 After $2.50/watt Utility rebate = $12,560 Roof pitch = 30, Azimuth = 200 NW roof pitch = 30, Azimuth = 149
• 12.
  Installing PV canlead to significant savings on your annual electricity bill Option 1 (best value) $483/year Option 2 (maximum power) $1,025/year With rates forecasted to increase, savings may be even greater! Your Estimated Savings Typical homeowner use example
• 13.
  Economic Analysis exampleCurrent Grid kWh Cost $0.11 / kWh Annual Electric Price Growth Rate 10%
• 14.
  Summary & RecommendationsAll options are viable choices depending on your needs I recommend you; Take advantage of Austin Energy rebate program PV module prices are coming down example Option 1 (best value) Option 2 (max power) Cost $4,240 $12,560 Payback period 8 years 12 years Percent of bill 31% 66% Benefits Achieving great energy output with moderate investment 9.3kWh provided will not only cover 66% of your electricity costs, but also make you money as electricity costs increase Considerations Smaller percentage of Annual Energy Bill West facing roof captures about 80% of max power
• 15.
  BACK-UP
• 16.
  Austin Energy RebateProgram example
• 17.
  Array Orientation
• 18.
  Typical PV BenefitsSummary