Energy Efficiency and… · SHS1 Engineering

Lesson notes

Learning Objectives

Indicator: 1.2.3.LI.2 - Use various instruments to accurately measure electrical and non-electrical quantities.

By the end of the lesson, learners can:

Measure voltage, current, and resistance in a small solar photovoltaic (PV) circuit using a digital multimeter, reading each quantity to the correct unit and scale.
Measure non-electrical quantities, including solar irradiance (using a pyranometer or solar power meter), temperature (using a thermometer or infrared thermometer), and wind speed (using an anemometer) in a renewable energy installation.
Connect measuring instruments correctly in series (for current) and in parallel (for voltage) without damaging the instrument or the circuit.
Record readings from measuring instruments with appropriate units and reasonable precision, and report at least one source of measurement error for each reading.
Compare their measured values with expected values from nameplates or standard conditions, and explain any significant difference between the two.

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Curriculum details

Strand: Energy Systems (Strand 2)
Sub-strand: Energy Efficiency and Conservation (2.3)
Content standard: 1.2.3.CS.1 - Develop the skill to measure, estimate, and analyse energy production and consumption in renewable energy systems. 1.2.3.LO.1 Use various instruments to measure electrical and non-electrical quantities in renewable energy systems. 1.2.3.LO.2 Estimate and interpret energy consumption of electrical and mechanical equipment.
Indicator: 1.2.3.LI.2 - Use various instruments to accurately measure electrical and non-electrical quantities.
Suggested placement: Semester 2, Week 5 (Week 25 of the year)
Our suggestion, laid out in curriculum order across three terms of twelve weeks. NaCCA does not fix the week, so follow your school's scheme of learning.
Curriculum reference: NaCCA curriculum document, p. 45

Exemplars (from the NaCCA curriculum)

Experiential Learning: Learners visit various renewable energy systems or watch videos of them and perform measurements of electrical and non-electrical quantities with facilitators' guidance.

Assessment (1.2.3.AS.2). The document marks these depth-of-knowledge levels for this indicator: Level 3 Strategic reasoning.

Teaching and Learning Resources:
- Projector
- Laptops and assorted instruments used to measure electrical and non-electrical quantities in renewable energy systems.
- Installed renewable energy systems and assorted instruments used to measure electrical and non-electrical quantities in renewable energy systems.
- Nameplates (actual or photographs) of equipment.