Economic Analysis

       

 

4 kW
Solar Panels

$30,378
Installed 1/29/08

  2.4 kW
Wind Turbine*

$20,000
Installed 2/5/10
Operating Expenses (life to date)        
Maintenance     $4,391  
Interest Expense (5%) $6,575   $3,329  
Depreciation (180 months) $8,776   $4,444  
Property Tax $2,870   $1,453  
         
TOTAL OPERATING EXPENSES $18,221   $13,617  
         
Electric Generation 2012        
January 152   153  
February 203   116  
March 418   152  
April 507   118  
May        
June        
July        
August        
September        
October        
November        
December        
2012 GENERATION YTD 1,280   539  
2011 Generation 2,887   783  
2010 Generation 3,948   656  
2009 Generation 4,169   1,128  
2008 Generation 4,681   N/A  
         
Total Generation (life to date) 16,965   3,106  
Cost per kWh generated (life to date) $1.07   $4.38  
Capacity Factor (life to date) 11.2%   4.4%  

Capacity Factor is the ratio of actual net energy generation to the maximum possible energy that could have been generated if the plan operated at its maximum capacity for the same period.

NOTES:
*A 5 kW wind turbine was initially installed on December 30, 2008 at a cost of $35,154. That unit broke for undetermined reasons in October 2009 and was replaced with a 2.4 kW unit on February 5, 2010. The investment and operating expenses shown represent those associated with the 2.4 kW unit. The generation figures shown represent the combined total from both units. There was no generation from October 2009 through February 5, 2010.
2010 Footnotes:
May – August 2010: Wind turbine non-operational due to inverter failure. New turbine installed August 3, 2010.

June 2010: Facilities were struck by lightning early in the month and solar inverter was damaged. New inverter installed on July 14, 2010.

2011 Footnotes:
March – May 1011: Wind turbine failed on or about March 4 and was out of service through April. New turbine installed May 10, 2011.
October – December 2011: Solar unit non-operational due to undetermined physical damage. Panel replaced 12/21/11.

Click for a printable version of this report.

 

 

 

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