PIC NEEDED.

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Presentation transcript:

PIC NEEDED

How can you use solar cells to produce the most energy possible? Feb 26 / 27 Act D 68 Photovoltaic Cells LEARNING TARGET: I can explain what circuit design for solar cells maximizes energy output. CH Q How can you use solar cells to produce the most energy possible? VOCAB: photovoltaic "photo" = light "volt" = voltage making electricity directly from light

PROCEDURE AND DATA MATERIALS: PROCEDURE: Read on pg. D 86-88 and summarize DATA: Design investigation(s) in journals Observations of each investigation

Conclusion from the data? What is the relationship between angle of light and amount of voltage?

POST DISCUSSION Solar Photovoltaic Power: Advantages Disadvantages costly to set up (pays over time) works only when there's light (must be stored for dark times) not very powerful for surface area used (though getting better) no pollution low maintenance Sun "forever" "off-grid" easy can add to grid's efficiency

How would you make motor spin fastest? when cell was pointed directly at Sun – maximizing “concentration” of light on surface area

Two solar cell setup looks like…. Why is two better than one? better than one - when in series -because the electrical power produced was added together

ANALYSIS - Discuss and answer Q 1-3 on pg. D 88 ANS CHALLENGE Q How can you use solar cells to produce the most energy possible? A: perpendicular (right) angle no interference (clouds/smog, etc.) maximum surface area and hours HOMEWORK Catch up on Journals – Complete Analysis Q’s