1. November 30, 2011 1 Pull in …supplement

2. Revisit Supply and Demand, focus on: 1) Energy Resource 2) Delivery System Sizing & Design PVWatts (Solar Resource) PV for Water Pumping Systems (System) Oregon NRCS Tech. Note No. 28 Oregon NRCS Calculator Adapt for other Uses 2

3. 3 Delivery System Capacity * Peak Need * Storage * Energy Resource * - Landowner Time & Money

4. 4 Delivery System Capacity Peak Need Storage Energy Resource

5. 5 Solar Irradiance: amount of solar energy projected on to a surface (i.e., panel). Recall that Watt measures instant energy flow.

6. 6 Solar Insolation: amount of solar over a period of time (e.g., day, month, year). Measured as kWh/sq. meter/day, typically.

7. www.nrel.gov/rredc/pvwatts/ 7 A Very Handy Tool …

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11. 11 We may adjust this … (later)

12. 12 Seasonal Tilt Adjust Summer: -15 deg Winter: +15 deg (always?)

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14. 14 Other options.

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16. 16 Design to Meet the (minimized and efficiently met) Energy Need Remote Use? Offset or Net-Metered?

17. 17 Note lack of unit for Energy Scale !

18. 18 Note lack of unit for Energy Scale !

19. 19 Another Very Handy Tool …

20. Cottage Grove Sheep Operation 216 animals Pastured May thru September Documented water rights (stream) Intake 42 ft below base of tank Gravity line to Two (2) 500 gal troughs 20

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25. 25 Round to 6.0

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30. 30 design flow rate = 3.0 gpm TDH = 60 ft_H2O (round up) … thus input power = 160 Watt

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36. 36 West NTSC contacts Stefanie Aschmann Leader Energy Technology Development Team stefanie.aschmann@por.usda.gov 503.273.2408 Kip Pheil Energy Specialist kenneth.pheil@por.usda.gov 503.273.2437