November 30, 2011 1 Pull in …supplement. Revisit Supply and Demand, focus on: 1) Energy Resource 2) Delivery System Sizing & Design PVWatts (Solar Resource)

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Presentation transcript:

November 30, Pull in …supplement

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

4 Delivery System Capacity Peak Need Storage Energy Resource

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

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

7 A Very Handy Tool …

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11 We may adjust this … (later)

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

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14 Other options.

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

17 Note lack of unit for Energy Scale !

18 Note lack of unit for Energy Scale !

19 Another Very Handy Tool …

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 Round to 6.0

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

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36 West NTSC contacts Stefanie Aschmann Leader Energy Technology Development Team Kip Pheil Energy Specialist

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