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IISA 2019 - GAIA Methodology


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In this presentation at the 10th International Conference on Information, Intelligence, Systems and Applications (IISA 2019), we discussed the GAIA Methodology. The methodology provides a framework for integrating energy-saving activities into the curriculum of a school with an IoT infrastructure in its building to monitor certain parameters. It is essentially a series of simple steps, in which students and teachers:
• study their environment,
• monitor the current situation and detect potential issues,
• devise a strategy to achieve energy savings and act,
• monitor and review the results of their actions.

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IISA 2019 - GAIA Methodology

  2. 2. Introduction • IoT and smart cities are very popular research fields. • Open issue: how can we utilize such smart city and IoT in order to produce solutions that: • Are economically sustainable and socially fair • Create public value • One possible answer: • apply such tools in an educational context and focus on sustainability, while achieving energy savings. Green Awareness in Action 2
  3. 3. Green Awareness In Action - GAIA 24/09/2019 3 GREECE 22 SCHOOLS 5500 STUDENTS SWEDEN 1 TECHNICAL HIGH SCHOOL 1000 STUDENTS ITALY 1 TECHNICAL HIGH SCHOOL 1 UNIVERSITY 1000 STUDENTS • 3 countries: Greece, Italy, Sweden • February 2016 – May 2019 • 25 school buildings • 7500 students in these schools • 290 teachers involved
  4. 4. GAIA’s Objectives • Increase awareness of the school communities in Europe regarding sustainability and energy savings • Utilize an IoT infrastructure inside school buildings for data • Build a European community of schools • Produce actual energy savings by changing students’ and teachers’ behavior Green Awareness in Action 4
  5. 5. Educational approach and rationale • Use real-world data generated inside schools to: • Enable more interesting lectures • Let students discover things on their own • Learn while doing cool stuff! • Apart from results inside class, students also tend to carry changes in their behavior to their homes and friends 24/09/2019 5
  6. 6. • Power consumption • Temperature • Relative humidity • Luminosity • Motion detection • Noise levels • CO2 concentrations • Weather parameters What is monitored in the school buildings
  7. 7. GAIA IoT devices 7 Power Consumption In classroomEnvironmental Sensor
  8. 8. Green Awareness in Action 8 GAIA Challenge
  9. 9. Green Awareness in Action 9
  10. 10. Green Awareness in Action 10
  11. 11. But… • Although we provide tools, it’s not always easy for schools to integrate them in their workflow • It’s not always simple/trivial to use external tools during class • Not a lot of teaching time available! • How to benchmark/compare between different schools during energy saving activities? Green Awareness in Action 11
  12. 12. Thematic cycles application • Schools in GAIA selected specific thematic cycles • A model was needed regarding how to conduct an activity related to energy consumption, using the tools and data available through GAIA. • It can be considered as a template / guide to how to implement the plan for each of the thematic circles chosen by the schools to be implemented during the school year.
  13. 13. The GAIA Methodology • A methodology we propose for integrating energy saving activities into the daily life of a school with an IoT infrastructure in its building to monitor certain parameters. • Follows the philosophy of the project but is not limited to GAIA's implementation or specific hardware/software • A series of simple steps, in which students and teachers: • study their environment, • monitor the current situation and detect potential issues, • devise a strategy to achieve energy savings and act, • monitor and review the results of their actions. Green Awareness in Action 13
  14. 14. Green Awareness in Action 14
  15. 15. Step 5 – continue monitoring • Focus after achieving some energy savings should be to continue monitoring results and verify whether they persist, or change in some way. • One way to achieve this is to monitor the situation weekly and reward pupils and classes on the basis of their progress. • Another way is through competition, by organizing groups in your school to be responsible for different parts of the school building. • Schools should also keep in mind that such aspects are supported in the GAIA competition for this school year. • These examples can also serve as examples for writing short reports for each school.
  16. 16. Practical Example • The technical high school in Söderhamn (Sweden) monitors electricity consumption in 1 of its 3 buildings. • The school chose to focus on consumption of electricity from appliances and equipment during lecture time. • There are many computers and other equipment used for several hours on a daily basis. • The school is already energy- efficient
  17. 17. Step 1- Awareness • The building includes a total of 8 classrooms, a computer room, a room with 3D printers and laser cutters, 3 teacher rooms and some small study rooms. • Teachers at the school mapped the hours of teaching that took place in the classrooms of the school. • During a typical week, the building is used for about 140 hours of teaching. • This number of teaching hours varies depending on parameters such as excursions and outdoor visits, holidays, etc.
  18. 18. Step 2 - Observation • The school then measured how much energy the building consumes when it is not used for lessons. • This was done in the 44th week, a holiday season. • This week the school kept ventilation in operation as if it were an ordinary week. • The biggest consumption occurred on Monday because some of the staff were working on that day. • On Friday, the school closed the ventilation one hour earlier that day - as is normal. • Basic school building consumption was calculated through measurements for this week from the GAIA Building Manager app.
  19. 19. • The average value for this week was 142 kWh per day. • This was considered to be the baseline energy consumption for this building, i.e., consumption that is inelastic, and can not be changed easily, or its change will have implications on the way the school operates.
  20. 20. Step 3 - Experimentation • The next thing the school did was to measure consumption during a typical week. • A good candidate was the 47th week of the year. • All student groups were in the building, no excursions and no teachers were absent, so that teaching activities took place as planned.
  21. 21. Consumption and use of the building 1220 1750 1990 1865 1430
  22. 22. Step 4 – Action! • The 50th week was the week that energy-saving actions began. • All students and staff were informed about disabling electrical equipment that is not in use. • There were students who were assigned to monitor the building and disable unused equipment. • Strategies to monitor and act were devised by students. • At the same time, 2 teams competed in GAIA Challenge.
  23. 23. First Results • The average price for this week was 196.5 kWh per day. • During this week, the use of the building was slightly longer. • We ended up reducing energy consumption by 21%. Week Daily average (kWh) Difference with week 44 (kWh) 44 141,9 0 47 211 69,1 50 196,5 54,6
  24. 24. Long term results Green Awareness in Action 24 Energy-saving week Lighting change Activity 1 Consumption [kWh/week] Difference with baseline [kWh/week] Baseline week 1147 - Energy saving week 1049 -98 Activity 2 Consumption [kWh/week] Difference with baseline [kWh/week] Baseline week 1147 - Week 19 987 -160
  25. 25. Step 5 Green Awareness in Action 25
  26. 26. Conclusions • The educational domain has many constraints on implementing activities that are not tied to a specific lecture/learning outcome • An attempt at providing a framework with a certain flexibility in terms of choosing an energy domain to focus, as well as the means to implement a strategy towards energy savings • We have seen energy savings around 15-20% in several schools • You don't always need complex tools to achieve good results • Lots of room for improvement in energy consumption in schools • The human factor plays an important role in achieving tangible energy savings Green Awareness in Action 26
  27. 27. Green Awareness in Action 27