Bay of Plenty Energy

Solar Savings Calculator

This tool is designed to estimate the annual savings based on a typical household's energy usage profile.
Actual savings will depend on your household's annual consumption and energy usage profile.

Instructions:

  1. Please fill in the yellow "input" cells below. (Note: monthly payment should be GST exclusive)
  2. Tabbing or clicking on another cell will automatically update the results
  3. Click on the reset button to refresh the screen with the default values


Inputs Required:

Average monthly energy bill      
Number of people in household  
 
 
  75% solar heating
system performance
 
Estimated annual energy bill    
Estimated annual hot water heating spend    
Estimated annual hot water heating savings    
Estimated monthly hot water heating savings    
Average monthly cost of solar unit (five years)    
Average monthly payment (five years)    
Average monthly payment including government grant (five years)    

Example assumptions:

  • Based on hot water heating costs for an average modern home of 40% of its annual energy bill (source - Energy Efficency and Conservation Authority).
  • Solar hot water heating system performance can vary depending on sunshine hours. 75% system performance estimate is used in this example as an indication of performance. This is based on research that shows up to 75% of a home’s hot water needs can be produced by a solar hot water heating system (source - Energy Efficiency and Conservation Authority).
  • Calculated on a five year payment term.
  • The default example (3-4 people) uses a 180L system at a cost of $5580.

For more information on our solar hot water heating systems and pricing click here .

Terms and Conditions:

  • Standard installation of the system is included in the price. Systems can be retrofitted to existing hot water cylinders provided they meet certain standards. Any water cylinder upgrade required is not included in this offer price.
  • Normal credit criteria and offer terms and conditions apply, available from Bay of Plenty Energy on request.
  • Offer is subject to site survey and only available in Bay of Plenty Energy supply areas.
  • A government grant of $1000 dollars is available for all package systems when used for a retrofit to an existing tank provided the tank being retrofitted to has similar characteristics to the tank modelled in the packaged system (i.e. the package system tank must be similar in size to your existing tank. Three size systems are available 135L, 180L 250L). Our consultant will work out you grant eligibility when they visit.


For further information or to arrange a free in-home solar appraisal contact us online or call us on 0800 500 710.





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