Unit 1

Using students’ homes and classrooms as real-world laboratories this UNIT 1 – My Energy Diary  introduces the topic of personal energy consumption in the home and in the classroom and gives a real-world context to ideas about energy conservation and be aware of energy efficient solutions for the home. Activities included this unit aim to enable students to calculate their personal energy consumption, convert between physical and domestic units of energy, work out the energy efficiency of common common appliances and extract relevant information from a home utility bill and apply a monetary value to energy consumption in kWh. Students also have the opportunity to draw and interpret energy transfer diagrams and Students will develop their energy literacy developing their data analysing, problem-solving, decision making, critical thinking and numeracy skills. The activities in this unit have been informed by the ENERGE Energy Literacy Framework

Table 1. Curriculum links
Table 2. Framework links
Table 3. Skils & competencies
Activity 1Activity 2Activity 3Activity 4Activity 5Activity 6Activity 7

Activity 1

Activity 1 – Stop electricity from leaking

Mapping Activity 1 to ENERGE Energy Literacy Framework
This activity explores the topic of “leaking electricity” or “phantom loading”. Students use watt meters to measure and tabulate power readings for appliances operating in (a) on mode and (b) standby mode. Students calculate energy consumption due to phantom loading in (i) kWh and (ii) the annual cost per kWh. Students graph their data and answer a number of questions. Students offer recommendations for reducing leaking electricity in their homes and classrooms.
This activity is licensed under a creative commons licence (CC. BY 3.0) and has been adopted from the following original source: Srividya Durga Kota et al 2019 Phys. Educ. 54 015007. Permission has been granted to ENERGE by the authors to promote this activity
Activity 1Activity 2Activity 3Activity 4Activity 5Activity 6Activity 7

Activity 2 – Calculating the cost of energy in the home

Activity 2 – Calculating the cost of energy in the home


In this activity, students use historical energy consumption data for a sample household to calculate the total daily, monthly and annual power output and energy consumed for a range of appliances. Students apply a monetary value to the energy consumption  using price per unit kVA (and kWh). Students will compare the costs of off-peak energy use with peak time costs.  In part B of this activity, students can carry out a mathematical exercise where they use the transformer formula to solve a real world problem. The purpose of the exercise is to ensure pupils can  manipulate the equation for primary and secondary coils and understand the theory behind it. Part B is optional.
This activity was developed by Lycée Gaudier-Brzeska for the STi2D curriculum in France. Permission has been granted to ENERGE by Lycée Gaudier-Brzeska to promote this activity
Activity 1Activity 2Activity 3Activity 4Activity 5Activity 6Activity 7

Activity 3

Activity 3 – Calculating the cost of energy in the community

In this activity students calculate the total energy consumed by common household devices as well as larger municipal systems in kWh. Students gain an understanding of energy efficiency and can determine the potential savings in cost associated with the instillation of more energy efficient lighting solutions for the community. This activity was developed by Lycée Gaudier-Brzeska for the STi2D curriculum and is being promoted as part of the ENERGE project.
This activity was developed by Lycée Gaudier-Brzeska for the STi2D curriculum in France. Permission has been granted to ENERGE by Lycée Gaudier-Brzeska to promote this activity
Activity 1Activity 2Activity 3Activity 4Activity 5Activity 6Activity 7

Activity 2 – Calculating the cost of energy in the home

Activity 4 – Energy Sankeys: Calculating energy efficiency

In this activity students draw and interpret Sankey energy flow diagrams.  Students learn that energy exists in different forms and can be measured in units of Joules (J). Students explore the topic of energy efficiency which is a measure of how much of the input energy is used usefully. Students will discover that energy can be changed from one form  to another but that the total amount of energy does not change and how energy is always conserved.
This activity was developed by SEAI in collaboration with CASTeL at Dublin City University as part of the Energy in Action Project. Permission has been granted to ENERGE by the authors to promote this activity
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Activity 5

Activity 5 – My thermal comfort at home

This activity is a reflective learning exercise that introduces students to topic of thermal comfort by asking them to document what they do during a typical weekday and specifically what interactions with energy they have throughout the day (e.g., light, electricity or heating). Students appreciate the central role energy plays in our lives and how essential our interactions with energy are to our comfort and well-being. Students calculate and apply a monetary value to personal energy consumption. Students demonstrate  an awareness of their responsibility to improve the efficiency of their interactions with energy.
This activity has been developed for the ENERGE project by CASTel at Dublin City University
Activity 1Activity 2Activity 3Activity 4Activity 5Activity 6Activity 7

Activity 2 – Calculating the cost of energy in the home

Activity 6 – Monitoring energy consumption in the home

In this activity students extract relevant historic energy consumption data in kWh as well as the unit cost per kWh. Subsequent tabling and graphing of this data then enables students to visualise trends in household energy consumption over a long period of time. Following this, students to use this data to carry out a series of energy calculations that relate to personal energy consumption. Finally, students are encouraged to research energy efficient solutions for the home and then are asked to make informed decisions about how the energy efficiency of their home could be improved.
This activity has been developed for the ENERGE project by CASTel at Dublin City University
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Activity 2 – Calculating the cost of energy in the home

Activity 7 – Calculating payback costs in the home

This activity introduces the concept of payback costs and helps students to understand methods to reduce energy  loss from the home. The payback time of an energy-saving solution is a measure of how cost-effective it is. Students will use their numerical abilities to calculate the cost savings of different energy-saving strategies.
This activity was developed by Mr. Robert Woodson who is a teacher of physics at Ysgol Bro Gwaun a secondary school in Pembrokeshire, Wales. Permission has been granted to ENERGE by Mr. Woodson to promote this activity
Activity 1Activity 2Activity 3Activity 4Activity 5Activity 6Activity 7