nable strategies and low emission pathways in Small Island Developing States: a costoptimization approach for the integration of renewables in the Republic of Mauritius.
Ms. Anna Genave, Université de La Réunion
Planning a reliable power system with a high share of renewables in France by...IEA-ETSAP
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Addressing flexibility and decarbonization of energy systems through TIMES mo...IEA-ETSAP
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Ms. Sophie Chlela, Centre for Applied Mathematics (CMA), MINES Paristech
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Dr. Gabriel David Oreggioni, Imperial College London
Planning a reliable power system with a high share of renewables in France by...IEA-ETSAP
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Addressing flexibility and decarbonization of energy systems through TIMES mo...IEA-ETSAP
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Assess the transition to a circular economy for the energy system: Long-term ...IEA-ETSAP
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Development of national long-term energy plans, for 2050’s carbon neutrality targets, using the DESSTINEE model.
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Professor Brian Vad Mathiesen, Sustainable Energy Planning Research Group,Aalborg University
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During this webinar, our expert speakers present an evaluation of the energy efficiency trend in the European transport sector since 2000. The following key questions are addressed:
What has been the overall trend in transport energy consumption in the EU and other European countries since 2000?
What are the main drivers for the energy consumption variation in transport, and in particular for the energy savings?
Recordings of the webinar: https://youtu.be/3TbePJCDvgE
Professor Brian Vad Mathiesen, Sustainable Energy Planning Research Group,Aalborg University
EFCF2020: 24th conference in series of the European Fuel Cell Forum in Lucerne, October 22, 2020
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After 6 years of regular decrease, the energy consumption of transport in the EU has been rising again since 2013, at the same rate as before the financial crisis. It has become the most energy-consuming end-use sector, responsible for 31% of the final energy consumption in the EU27 in 2019. The energy transition in transport lags far behind the other sectors. However, some countries are performing better than others.
During this webinar, our expert speakers present an evaluation of the energy efficiency trend in the European transport sector since 2000. The following key questions are addressed:
What has been the overall trend in transport energy consumption in the EU and other European countries since 2000?
What are the main drivers for the energy consumption variation in transport, and in particular for the energy savings?
Recordings of the webinar: https://youtu.be/3TbePJCDvgE
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16–17th november 2023, Turin, Italy, etsap meeting, etsap winter workshop, semi-annual meeting, november 2023, Politecnico di Torino Lingotto, Torino
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16–17th november 2023, Turin, Italy, etsap meeting, etsap winter workshop, semi-annual meeting, november 2023, Politecnico di Torino Lingotto, Torino
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16–17th november 2023, Turin, Italy, etsap meeting, etsap winter workshop, semi-annual meeting, november 2023, Politecnico di Torino Lingotto, Torino
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16–17th november 2023, Turin, Italy, etsap meeting, etsap winter workshop, semi-annual meeting, november 2023, Politecnico di Torino Lingotto, Torino
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VO: the work process
- Making modifications collaboratively,
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16–17th november 2023, dr daniele lerede, etsap meeting, etsap winter workshop, italy, mathep group, november 2023, politecnico di torino, semi-annual meeting, turin
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The carbon cycle is a critical component of Earth's environmental system, governing the movement and transformation of carbon through various reservoirs, including the atmosphere, oceans, soil, and living organisms. This complex cycle involves several key processes such as photosynthesis, respiration, decomposition, and carbon sequestration, each contributing to the regulation of carbon levels on the planet.
Human activities, particularly fossil fuel combustion and deforestation, have significantly altered the natural carbon cycle, leading to increased atmospheric carbon dioxide concentrations and driving climate change. Understanding the intricacies of the carbon cycle is essential for assessing the impacts of these changes and developing effective mitigation strategies.
By studying the carbon cycle, scientists can identify carbon sources and sinks, measure carbon fluxes, and predict future trends. This knowledge is crucial for crafting policies aimed at reducing carbon emissions, enhancing carbon storage, and promoting sustainable practices. The carbon cycle's interplay with climate systems, ecosystems, and human activities underscores its importance in maintaining a stable and healthy planet.
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The objective of this work is to contribute to valorization de Nephelium lappaceum by the characterization of kinetics of drying of seeds of Nephelium lappaceum. The seeds were dehydrated until a constant mass respectively in a drying oven and a microwawe oven. The temperatures and the powers of drying are respectively: 50, 60 and 70°C and 140, 280 and 420 W. The results show that the curves of drying of seeds of Nephelium lappaceum do not present a phase of constant kinetics. The coefficients of diffusion vary between 2.09.10-8 to 2.98. 10-8m-2/s in the interval of 50°C at 70°C and between 4.83×10-07 at 9.04×10-07 m-8/s for the powers going of 140 W with 420 W the relation between Arrhenius and a value of energy of activation of 16.49 kJ. mol-1 expressed the effect of the temperature on effective diffusivity.
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Many companies today use green washing to lure the public into thinking they are conserving the environment but in real sense they are doing more harm. There have been such several cases from very big companies here in Kenya and also globally. This ranges from various sectors from manufacturing and goes to consumer products. Educating people on greenwashing will enable people to make better choices based on their analysis and not on what they see on marketing sites.
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Please visit our website: https://kuddlelife.org
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WRI’s brand new “Food Service Playbook for Promoting Sustainable Food Choices” gives food service operators the very latest strategies for creating dining environments that empower consumers to choose sustainable, plant-rich dishes. This research builds off our first guide for food service, now with industry experience and insights from nearly 350 academic trials.
Sustainable energy and climate mitigation pathways in the Republic of Mauritius
1. Anna GENAVEa and Sandrine SELOSSEb
aCEMOI, University of La Réunion
bCMA, Mines ParisTech – PSL University
Sustainable energy and climate
mitigation pathways in the
Republic of Mauritius
SUMMER 2021 SEMI-ANNUAL ETSAP MEETING
17-18 June 2021
3. What motivated this study?
3
Energy
Vulnerability
Index
Shock
Economic
TPES per cap
Energy intensity
of GDP
Energy intensity
in the transport
sector
Environmental
Carbon intensity
of TPES
Exposure
Economic
Energy import
dependency
Energy mix
diversity
Overall system
conversion
efficiency
Social
Access to
electricity
From energy vulnerability to energy transition
Mitigating vulnerability to energy system
external shocks and internal disturbances
+
Mitigating climate change through GHG
emissions reduction
Source: Genave et al. (2020)
5. Evolution of power generation by source - Rodrigues
0
10
20
30
40
50
1990
1992
1994
1996
1998
2000
2002
2004
2006
2008
2010
2012
2014
2016
GWh
1% 5%
94%
PV
Wind
HFO
Power generation (GWh) between 1990 and 2017 Generation (%) in 2019
5
14.1 MW of
installed capacity
44 GWh
6. 2015 2025 2050?
2019 2030
Policy milestones in the RoM
6
NORMATIVE EXPLORATORY
NDC to the
Paris
Agreement
RE Roadmap
2030 for RE
integration
35% RE
penetration
30% GHG
emissions
reduction
100% RE
penetration
(ROD)
2009
LTES (2009-
2025)
7. Research question
7
Which policy target is most likely capable of shaping a
secure and sustainable energy future for the two island
power systems in the Republic of Mauritius?
8. Weisser (2004)
Assess the long-term costs of various
electricity generation choices using
Discounted Cash Flow analyses based on NPV
and LCOE
Shea and Ramgolam (2019)
Identify local renewable resource potential
and island specific costs to determine the
LCOE of various technologies.
Timmons et al. (2019)
Adopt a cost-effectiveness approach to
identify the least expensive way to obtain
electricity from renewable sources using the
OSeMOSYS model
Edoo and Ah-King (2020)
Identify the major technical challenges with
respect to achieving 35% RE by 2025, as
outlined in the Long-Term Energy Strategy
(2009-2025) of the MEPU (2009) using the
EnergyPLAN software.
Existing studies on the RoM
Earlier literature
8
• Solar PV and biomass play a
major role in the energy
transition
• Storage technologies are seen
as enabling technologies
9. • Insights into long-term power system modelling for Rodrigues Island
• Modelling of power sector specificities
• Supply side
• Demand side
• Network density
• Extend the discussion beyond policy milestones to 2050
• Investigate CO2 emissions trajectories
Contributions
9
11. RoM-TIMES model: power-sector scenarios to 2050
11
• Two regions - Mauritius (MUS) and Rodrigues
(ROD)
• Modelling horizon: 2019-2050
• Granular representation of generating units
• Time slices: 20 for both MUS and ROD
• Electricity demand is exogenous
• Policy focus: LTES (2009-2025) and NDC
• Model discount rate of 8%
12. 30GHG
• 2030 NDC target achieved
• CO2 emissions growth slow-
down
• Additional 20 pp reduction in
CO2 emissions by 2050
BAU
• NDC targets not reached
• No policy intervention to
correct current trends
35RE
• Development of renewables
as per RE target
• Additional 15 pp RE
penetration by 2050
Normative
Exploratory
Normative
Exploratory
Scenarios
12
14. 0
1000
2000
3000
4000
5000
6000
7000
8000
2019 2025 2030 2040 2050
REFYR BAU
MUS
WGS
Solar PV utility
Solar PV roof
Onshore wind
Landfill gas
Kerosene
Imported biomass
Hydropower
HFO
Fuelwood
Coal/Bagasse
Coal
BESS
Power generation mix evolution - Mauritius
14
• BAU naturally integrates RE
• Coal still plays an important role at the end
of the modelling horizon
• Fuel switch between HFO and LFG +
imported biomass
7121
GWh
2955
GWh
4304
GWh
15. Power generation mix evolution - Mauritius
15
35RE
• Earlier phase-out of HFO to
integrate imported biomass and
WGS
• More integration of LFG at the
end of the horizon
-60
-40
-20
0
20
40
60
2019 2025 2030 2050 2019 2025 2030 2050
35RE BAU
GWh
WGS
Solar PV utility
Solar PV roof
Onshore wind
Landfill gas
Kerosene
Imported biomass
Hydropower
HFO
Fuelwood
Coal/Bagasse
Coal
BESS
-3000
-2000
-1000
0
1000
2000
3000
2019 2025 2030 2050 2019 2025 2030 2050
30GHG BAU
GWh
WGS
Solar PV utility
Solar PV roof
Onshore wind
Offshore wind
Landfill gas
Kerosene
Imported biomass
Hydropower
HFO
Fuelwood
30GHG
• Deeper cuts in fossil production
than in the 35RE scenario
• Coal production is replaced by
more renewable (LFG and
offshore)
Difference in generation w.r.t BAU Difference in generation w.r.t BAU
16. Power generation mix evolution - Rodrigues
16
0
20
40
60
80
100
120
2019 2025 2030 2040 2050 2025 2030 2040 2050 2025 2030 2040 2050
REFYR BAU 35RE 30GHG
ROD
GWh
Solar PV utility
Onshore wind
HFO
Fuelwood
• BAU naturally integrates RE thanks to
fuelwood and solar PV
• Fuelwood plays an important role in
replacing HFO
• Fuel switching between HFO and onshore
wind to achieve emissions reduction targets
• 45% VRE penetration at the end of the
modelling horizon in 30GHG
100
GWh
69
GWh
44
GWh
17. 0
500
1000
1500
2000
2500
3000
3500
2019 2025 2030 2050
MUS
Kt
CO
2
30GHG
35RE
BAU
0
5
10
15
20
25
30
35
2019 2025 2030 2050
ROD
Kt
CO
2
30GHG
35RE
BAU
CO2 emissions trajectories
17
30GHG results in more stringent emissions reduction
2107
29
3125
1562
22
11
RE targets not compatible with NDC pledges of the
RoM
+48%
-26%
-24%
-62%
18. -30000
-20000
-10000
0
10000
20000
30000
40000
BAU
35RE
30GHG
BAU
35RE
30GHG
BAU
35RE
30GHG
BAU
35RE
30GHG
2020 2030 2040 2050
MUS
B
Euro
WGS
Solar PV utility
Solar PV roof
Offshore wind
Landfill gas
Imported biomass
Hydropower
HFO
Fuelwood
Coal/Bagasse
Coal
BESS
Economic impacts - Mauritius
18
Region BAU 35RE 30GHG
MUS 3606 - +6%
ROD 77 - +3.5%
NPV (B Euro)
• 30GHG scenario is sensibly more
capital-intensive than BAU due to
the deployment of LFG and
offshore wind
Difference in undiscounted inv.
costs w.r.t BAU
19. Economic impacts - Rodrigues
19
-400
-200
0
200
400
600
800
1000
1200
BAU
35RE
30GHG
BAU
35RE
30GHG
BAU
35RE
30GHG
BAU
35RE
30GHG
2020 2030 2040 2050
ROD
B
Euro
Solar PV utility
Onshore wind
HFO
Fuelwood
• Investment requirements in BAU
and 35RE similar
• 30GHG scenario is substantially
more capital-intensive than BAU
due to the deployment of onshore
wind turbines
Region BAU 35RE 30GHG
MUS 3606 - +6%
ROD 77 - +3.5%
NPV (B Euro)
Difference in undiscounted inv. costs
w.r.t BAU
21. • RE targets are not compatible with the RoM’s commitment to the Paris
Agreement (could be revised upwards)
• Solar PV, biomass, LFG and wind are critical energy technologies for the clean
energy transition in the RoM
• Emissions reduction targets require more capital-intensive investments
• The RoM should focus on CO2 emissions reduction efforts and design adequate
policy packages for climate mitigation
Concluding remarks
21
22. Comprehensive sensitivity analysis on key parameters to deal with uncertainty
What’s next? (1)
22
• Price of fossil fuels
• Biomass potential → land usage, non-CO2 emissions
• Technology specific rates + SDR
• Electricity demand scenario variants (HIGH and EE)
23. The role of energy transition in energy
vulnerability mitigation?
What’s next? (2)
23
Energy
Vulnerability
Index
Shock
Economic
TPES per cap
Energy intensity
of GDP
Energy intensity
in the transport
sector
Environmental
Carbon
intensity of
TPES
Exposure
Economic
Energy import
dependency
Energy mix
diversity
Overall system
conversion
efficiency
Social
Access to
electricity
• ↓ CO2 emissions
• ↓ fossil imports
• More diversified mix
• More efficient system
24. Thank you for your attention!
Any questions?
anna.genave@univ-reunion.fr
Anna Genavea and Sandrine Selosseb
aCEMOI, University of La Réunion
bCMA, Mines ParisTech – PSL University
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National Greenhouse Gas Inventories Programme, Eggleston H.S., Buendia L., Miwa K., Ngara T. and Tanabe K. (eds). Published:
IGES, Japan. Available at https://www.ipcc-nggip.iges.or.jp/public/2006gl/pdf/2_Volume2/V2_2_Ch2_Stationary_Combustion.pdf
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8%20Sept%202015.pdf
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https://www4.unfccc.int/sites/SubmissionsStaging/NationalReports/Documents/3251748_Mauritius-NC3-1-NIR%20%20NC3.pdf
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