The document evaluates solar panel options for a residential property at 1717 Aggie Lane, Austin, TX, providing three installation choices: Best Value, Maximum Power, and Lowest Price, each with details on costs, energy output, and payback periods. Recommended measures include energy efficiency improvements and waiting for incentive programs before installation. Estimated savings on electricity bills range from $494 to $885 annually, depending on the chosen option.

1. Solar 4 U 1717 Aggie Lane, Austin, TX

2. This Project Addresses Your… Current Home Assessment How much energy you currently use and what you are paying per kWh Opportunity for savings with energy efficiency measures Options for choosing the best PV System to meet your needs Best value Maximum power output Lowest price Estimated Benefits Annual electric bill savings Payback period of your PV system

3. Monthly Use and Charges kWh (kiloWatt hours) Charges Current Use: $623.19/year & 6,410 kWh

4. Energy Efficiency Opportunities to Save Energy Efficiency Energy Star Appliances AC is new and efficient Home Improvements Shading Duct Work Light bulb replacement

5. Applying PV to 1717 Aggie Lane (+) Roof in good condition (-) Large tree on south side of house

6. Roof Orientation 30 0 26.6 0

7. Un-shaded Roof Areas 11:30am December Unshaded Unshaded

8. We will review 3 options for installing PV based on your needs Option 1 (best value) Option 2 (max power) Option 3 (lowest price) All 3 designs will connect to the utility grid All 3 options will result in savings to your monthly electricity bill PV System Options

9. Option 1: Best Value 96% solar access in summer months

10. Option 1: Best Value 49 modules X 160 watts = 7840 watts Cost at $5.50/watt = $43,120 Cost after 30% federal tax credit = $30,184 NW roof; pitch = 30, Azimuth = 330 NE roof ;pitch = 26, Azimuth = 59 PV Watt yearly output = 7.9 kWh PV Watt yearly energy value = $718 PV payback period = 42 years 123% of the annual energy bill

11. Option 2: Maximum Power Rack + Accessories $12,200 Watt (ea.) $1.28 Module (ea.) $435 (Unirac) 0 rack mounting for 28 modules 0

12. Option 2: Maximum Power PV Watt yearly output = 9.3 kWh PV Watt yearly energy value = $885 PV payback period =43.75 years 145% of the annual energy bill 49 modules X 160 watts = 7840 watts Cost at $5.50/watt = $55,320 Cost after 30% federal tax credit = $38,724 NW roof pitch = 15, Azimuth = 149 NE roof pitch = 26, Azimuth = 59

13. Option 3: Lowest Price Focusing on the un-shaded areas

14. Option 3: Lowest Price 33 modules X 160 watts = 5280 watts Cost at $5.50/watt = $29,000 Cost after 30% federal tax credit = $20,300 NW roof pitch = 30, Azimuth = 330 NE roof pitch = 26, Azimuth = 59 PV Watt yearly output = 5.2 kWh PV Watt yearly energy value = $494 PV payback period = 41 years 81% of the annual energy bill

15. Installing PV can lead to significant savings on your annual electricity bill Option 1 (best value) $718/year Option 2 (maximum power) $885/year Option 3 (lowest price) $494/year With rates forecasted to increase, savings may be even greater! Your Estimated Savings Typical homeowner use

16. Summary & Recommendations All options are viable choices depending on your needs Regardless of option chosen, recommend you wait for: Austin Energy rebate program re-instatement PV module prices to come down Option 1 (best value) Option 2 (max power) Option 3 (lowest price) Cost $30,200 $38,700 $20,300 Payback period 42 years 43.75 years 41 years Percent of bill 123% 145% 81% Benefits No racking system Achieving great energy output with moderate investment 9.3kWh provided will not only cover your electricity costs, but also make you money as electricity costs increase Achieve “green” and savings at minimal cost No shading Considerations Shading will reduce power output in winter months Racking system requires slightly greater attention Over time, savings will be less significant than in Options 1 and 2

17. BACK-UP

18. Austin Energy Rebate Program

19. Array Orientation

20. Typical PV Benefits Summary