Darrel LongOng Xin JieTeo Zheng JieTe

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Photovoltaic Cells and Solar Power (Part 2)

1Lesson 5 Introductory Lecture

Lesson Objectives

Lesson 5 Introductory Lecture 2

Location

Sun passes almost directly overheadBest locations:

oOn or in a gently sloping/flat roofoGlazed roofoCanopy

Single-axis/Dual-axis trackers to maximise efficeincy

Mounting at an incline of 10 – 15 degrees for unframed solar panels (WHY?)

Lesson 5 Introductory Lecture 3

Cabling

Lesson 5 Introductory Lecture 4

Maintenance

Lesson 5 Introductory Lecture 5

Lesson 5 Introductory Lecture 6

Appliances Resistive LoadWifi Device 50 watts

Clock 5 wattsCoffee Maker 1,700 wattsComputer - PC 300 watts

Speaker 200 wattsDeep Fryer 1,800 watts

Electric Blanket 400 wattsElectric Curlers 300 watts

Frying Pan 1,250 wattsHair Dryer 1,875 watts

Light Bulbs (per tube) 80 wattsIron 1,200 watts

Microwave 1,050-2,500 wattsWashing Machine 1,150 watts

Water Heater 4,000 wattsTV - Color 300 watts

Lesson 5 Introductory Lecture 7

Common Tools Resistive Load

Air Conditional 1,500 watts

Projector / Visualiser 700 wattsComputer 300 watts

Fan 150 watts

Garage Door Opener (1/4 hp) 550 watts

Grinder, Bench 1,400 watts

Heater, Kerosene (90,000 BTU) 500 watts

Sump Pump (1/3 hp) 800 watts

Well Pump (1/2 hp) 150 wattsSaw, Band 1,100 watts

Table Saw (10 inch) 1,750 watts

The End

• Any questions?

8Lesson 5 Introductory Lecture