1 / 5

Energy Free Stock Tanks

Energy Free Stock Tanks. Review of Existing Deemed Savings Regional Technical Forum July 7, 2009. Energy Free Stock Tanks - Review. Definition: Super-insulated livestock watering tanks that do not require freeze protection using an outside “fuel”.

keene
Download Presentation

Energy Free Stock Tanks

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Energy Free Stock Tanks Review of Existing Deemed Savings Regional Technical Forum July 7, 2009

  2. Energy Free Stock Tanks - Review • Definition: Super-insulated livestock watering tanks that do not require freeze protection using an outside “fuel”. • Baseline is a system that uses thermostatically controlled electric resistance element freeze protection.

  3. Details of the Existing Deemed Energy Savings & Cost Note: Preliminary estimated 6th Plan cutoff for cost-effectiveness is about 60 to 70 mils/kWh for non-lost-opportunity measures. • Energy Savings • Based monthly energy consumption data from one electrically heated tank during the 2002/2003 heating season in Union, OR. (1137 kWh/year). • Results track with PAMI’s “study” that showed 440 kWh to 1800 kWh/year. • Weather normalization to the three heating zones uses a straight average temperature weighting. • (Weighting Factor heating zone) = (Avg Temp °Fheating zone)/(Average Temp °FUnion) • (Energy Useheating zone) = (Weighting Factor heating zone) * (Energy UseUnion) • Cost ($370) • Based on data from OTEC on cost of unit ($400), minus cost of heating element ($30). • Number of Claims in 2007 & 2008 under CRC = 40 units

  4. Issues w/ Current Assumptions • Energy Savings • Savings based on a sample size of only 1 • The following would effect the energy use of an electrically heated tank: gallon capacity, # of gallons used per day (type and # of animals), insulation effectiveness, thermostat settings, etc. • Other options for weather normalization: • 1. Normalize based on # days less than 32 or 35 degrees • 2. Normalize based on “degree days, base 32 or 35” • Cost may need revision, updating

  5. Decisions • Continue to Provide a Deemed Value? • Use existing savings or revise or hold off for more monitoring? • Use existing cost, or seek an update?

More Related