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DEVELOPMENT AND APPLICATION OF A MULTI-CRITERIA SOFTWARE DECISION ANALYSIS TOOL FOR RENEWABLE ENERGY SOURCES
(Project No: NNE5-1999-NNE5/273/2001)
Workshop on the 7th and 8th of October 2004
Title: Multi-Criteria for Decision Analysis for Renewable Energy Projects Venue: University of the Aegean, Mytilene
A. Participants
University of the Aegean Prof. Dias Harambopoulos Dr Heracles Polatidis Ms. Eleni Eleftheriadou Ms. Mirsini Salta Mr. Stratis Giannoulis
Free University Amsterdam Dr Frank Bruinsma Mr. Ron Vreeker
Autonomous University of Barcelona Ms. Daniela Russi Mr. Gonzalo Gamboa
EXERGIA S.A. Dr. George Vlondakis
Province of Utrecht Ms. Dorien van Cooten
North Aegean Region Dr V. Kontis
North Aegean Region Mr M. Hatzaras
Netherlands Institute for Spatial Research Mr. Hugo Gordijn
Public Power Corporation Mr Ap. Plakas
Hrvoje Pozar Energy Agency Mr Velimir Segon
Local Municipal Development Company Mr D. Manzaris
Sustainable Energy Consultancy Mr Ilias Plastiras
EHN Company Mr Santiago Gomez
Academic Investor Prof. Joaquin Coromiras
Greenpeace Hellas Mr M. Safos
WWF Hellas Mr Ach. Plitharas
Archipelagos Aigaio Mr Th. Tsibidis
Local People –general public (Spain) Ms Anna Sera
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B. Agenda
Thursday 7th of October
Venue: Marine Science building – Room C (ground floor)
10:00 |
Greetings – [University of the Aegean – UA, Free University of Amsterdam – FUA, Autonomous University of Barcelona – AUB] |
10:30 |
Short introduction on RES and MCDA – [UA – Mr Stratis Giannoulis] (Click here to download presentation) |
11:00 |
Presentation of the MADE-RES project and Tool-kit – [UA – Mr Heracles Polatidis] (Click here to download presentation) |
11:30 |
The Dutch experience with the Tool-kit – Case Studies – [FUA – Dr Frank Bruinsma, Mr Ron Vreeker] (Click here to download presentation) |
12:00 |
The Spanish experience with the Tool-kit – Case Studies – [AUB – Ms Daniela Russi, Mr Gonzalo Gamboa] (Click here to download presentation) |
12:30 |
The Greek experience with the Tool-kit – Case Studies – [UA – Ms Mirsini Salta] (Click here to download presentation) |
13:00 |
End of morning session Lunch break |
15:00 – 18:00 |
Partcipants’ presentations, The RES experience from other countries Ms. Dorien van Cooten, MCDA-RES in the province of Utrecht (Click here to download presentation) Mr Hugo Gordijn, MCDA and RES the French experience Velimir Segon, status of biomass and bioenergy in Croatia (Click here to download presentation) D. Manzaris, MCDA and RES in Lesvos (Click here to download presentation) Ilias Plastiras, Sustainable Energy Action Agency (Click here to download presentation) Santiago Gomez, how to implement wind power with public support: the experience of EHN (Click here to download presentation) Joaquin Coromiras, experiences from Spain 1979 – 2004 (Click here to download presentation) M. Safos, Greenpeace on RES (Click here to download presentation) Ach. Plitharas, WWF on RES (Click here to download presentation) Ms Anna Sera, wind power project on Coma Bertran |
18:00 |
End of afternoon session Dinner |
Friday 8th of October
Venue: Xenia Building – PC centre (ground floor)
10:00 |
Simulation Exercise [Xenia Building – PC centre (ground floor)] Participants applied the MCDA-RES Tool-kit in a case study. |
13:00 |
End of session Lunch |
C. Introduction
On Thursday 7th and Friday 8th of October the MCDA-RES Training Course
entitled ‘Multi-Criteria Decision Analysis for Renewable Energy
Projects’ was held in Mytilene, Lesvos. Participants included the
MCDA-RES project partners and various stakeholders from different
countries around Europe. These comprised of NGOs, consultants in energy
agencies, investors and people who work in regional and municipal
authorities, all of them dealing with different aspects of renewable
energy sources.
D. Aim of the Training Course
This Training Course was organized in order to present the MCDA-RES Tool
kit to various stakeholders from different countries. During Thursday’s
morning session the project participants presented their experiences
with the various software included in the MCDA-RES Tool Kit. In the
Thursday afternoon session the various stakeholders were given the
chance to express their views on multi criteria decision analysis, the
difficulties in launching renewable projects and the importance of
switching to renewable energy. The Training Course ended by launching a
simulation exercise during the Friday session where all of the
participants were given a chance to apply the Tool kit in various case
studies.
E. Presentations of project
partners – the Greek, Dutch and Spanish experience
E.1. Presentation by Mr Stratis Giannoulis, University of the
Aegean
Short introduction on RES and MCDA
This presentation dealt with the major technological aspects of RES, the
situation in the EU and the multi criteria decision analysis
methodologies.
The major benefits from renewable energy sources are:
low environmental impact
“infinite” energy
local investment
social benefits
energy independency
easy access to energy for the rural areas
On the other hand there are some major drawbacks which are:
extensive land use
visual intrusion
creation of noise
indirect air emissions
thermal and chemical pollution
ecosystems disturbance
Regarding fossil fuels, oil
is estimated to last for the next 20 to 30 years and its emissions are
responsible for the global warming phenomenon. Coal has a limited
economic future for power production in the EU and its future is linked
to the reduction of its environmental impact. Natural gas can cause long
term supply problems, while nuclear energy cannot expand without a
political consensus; the issue of nuclear waste is “thorny” and there is
always the risk of an accident.
The Kyoto’s protocol target concerns the reduction of six greenhouse
gases. EU is committed to reduce these gases at 8% below the 1990 levels
by 2010. In order to succeed to this target, EU has to invest
extensively in renewable energy. This could be quite beneficial as it
can offer security of supply, affordable and stable energy prices,
ecologically sustainable energy supply, creation of jobs and there are
going to be economic benefits for EU’s RES industry in the international
markets. It is widely accepted that energy dependence can cause
implications to the economy, the environment and to international
relations.
There is an increase in RES investments and this can be attributed to
the need to fulfil the Kyoto commitments, the deregulation of the energy
markets and the technological improvements. However, there are still
obstacles related mainly to the high initial investment cost.
According to current trend, there is going to be an increase in the
energy demand of about 1 to 2% annually. It should be mentioned that
there is great potential through energy saving. Despite the fact that
the energy efficiency is at about 25%, there is great economic potential
in improving that figure. The sectors which are quite crucial are
industry, lightning, electrical appliances and transportation.
Multi-criteria decision analysis deals with the process of making
decisions in the presence of multiple objectives. It is essential to
understand that the decision is highly dependent on the preferences of
the decision-maker and that it is a compromise.
The presentation ends with a short overview of the MCDA-RES project.
E.2. Presentation by Dr Heracles
Polatidis, University of the Aegean
Development and application
of an MCDA-RES software tool for RES
This presentation deals with the MCDA-RES Tool kit and gives a
description of its structure and the steps that are followed. The
project’s objective is to develop a Software Decision Tool that will
enable the Multi-Criteria Analysis of RES investments and apply it in
several case-studies. The aim of the Tool-Kit is to provide a coherent
framework of sequential steps that would lead the decision process.
There are eight (8) steps for the tool kit and these can be summarized
as follows:
STEP 1: Problem Identification and Initial Data Collection
STEP 2: Identification of Stakeholders
STEP 3: Creation of Alternatives
STEP 4: Establishment of Criteria
STEP 5: Criteria Evaluation and Preference Elicitation
STEP 6: Selection of the MCDA Technique
STEP 7: Model Application
STEP 8: Stakeholders Analysis of Results and Feedback
The way to navigate through the web-site and the case studies is described. Then each Step is explained analytically. In Step 1 the decision context is introduced and the general societal call for action is revealed. Step 2 provides guidelines for correct stakeholder identification. These individuals consist of all the different people associated with the planning and decision process, those who have a legitimate responsibility to participate, and/or add a socio-political dimension to the process. As for the creation of alternatives (Step 3) there are a few questions to be addressed such as what is an alternative scenario, what are the feasible types of alternatives, and so on. The establishment of criteria (Step 4) depends on certain issues such as the legal requirements, local nature, and the types of criteria for the RES projects. In Step 5, the information needed concerns economic data, environmental impacts, social impacts, technological base and the stakeholders’ preference between the criteria – weights. Step 6 introduces the four (4) different software included in the MCDA-RES Tool Kit, namely REGIME – FLAG, ELECTRE III, NAIADE and PROMETHEE II. The presentation concludes with an analysis of the appropriateness of the MCDA-RES frame as an integrated tool for RES evaluation and decision-making.
E.3. Presentation by Dr Frank
Bruinsma, Free University of Amsterdam
MCDA-RES; the Dutch case studies
This presentation deals with the two Dutch case studies which took place
in the prefectures of Utrecht and Flevoland. Flevoland is obliged by law
to have 220 MW capacity installed while Utrecht must include 50 MW.
The particular problems had to be tackled in the case of Utrecht are:
Cultural and historical valuable area
Important habitats for birds
Lack of space
Hardly any windmills installed (0,2 MW)
Obligation to install 50 MW
The main RES evaluation criteria included:
Technical specifications
Energy benefits
Nature and birds
Landscape and cultural historic values
Noise
Safety
Shade of rotor blades
The multi-criteria technique
REGIME ANALYSIS was selected for this case. The basic idea is to rank a
set of alternatives by means of their pair wise comparisons in relation
to a set of criteria. Regime Analysis makes use of an impact matrix and
a set of weights. The method can cope with qualitative, quantitative and
mixed data.
In the Province of Flevoland, the major issues identified are that it is
a new ‘polder’ land, with sufficient space, it already fulfils the 200MW
commitments and the question been how to facilitate new projects.
The main categories of criteria identified for this case to be included
in the FLAG multi-criteria model are:
Spatial planning guidelines
Ecological guidelines
Landscape
Living environment
The stakeholders’ analysis of the results showed that the scores never exceed the critical threshold values (no black flags), there was no legal basis for rejecting permit and the problems were solved by negotiation and mediation. So the conclusion is that the Flag model is useful in rather simple projects with clear threshold values.
E.4. Presentation by Ms Daniela
Russi and Mr Gonzalo Gamboa, Autonomous University of Barcelona
MCDA-RES; the Spanish case studies
This presentation concerns the Spanish case studies. The first case
study presented is the wind farms in western Catalonia. The conflict was
with the towns that had migration trends. The municipalities and the
citizens were supporting the wind park projects. Nevertheless, the
social movements were against the implementation of the parks mainly due
to the process followed. These groups involved ecologist groups, second
residencies, neo-rural movement and many more. The proposed method was
the Social Multi Criteria Evaluation (SMCE). The steps followed were the
problem identification, identification of stakeholders, the creation of
alternatives, establishment of criteria, criteria evaluation and
preference elicitation, selection of the MCDA technique, model
application and stakeholders’ analysis.
The twelve (12) alternatives presented were based on actors’ preferences
and technical feasibility. These were constructed by means of GIS
software. The criteria formulated were the number of jobs, owners’
benefits, local government income, distribution of income,
socio-economic compatibility, visual impact, deforestation, noise,
reduction of CO2 emissions and installed power capacity.
The conclusion is that the Top-Down decision making procedure faced
severe technical and practical problems. The SMCE framework increases
transparency in the public decision- making. It is a learning tool for
both the analyst and the social actors.
E.5. Presentation by Ms Myrsini
Salta, University of the Aegean
MCDA-RES; the Greek case studies
This presentation deals with the Greek case studies. The evaluation of a
wind project in Troizina was conducted through the 8 Steps of the
MCDA-RES framework. The problem identification involves the installation
of a wind farm in Aderes mountain; it is a private investment with a
total capacity of 31,45MW, including 37 wind turbines with a capacity of
0,85MW each.
Data were collected from both the municipalities of Troizina and Poros.
The main problems are that although the installation is in Troizina the
visual impact is in Poros. Also the decision centre is in Pireaus and
the local municipalities have little or no participation in the
procedure. There is also the fact that both municipalities have no
previous experience with RES investments.
The alternative scenarios that were recognised were four (4) with first
been ‘do nothing’ and the other 3 giving a variation in the number of
wind turbines installed. 17 criteria were divided in energy, economic,
environmental, social and technological groups. The preference
elicitation was based on criteria ranking and that because the direct
assignment of criteria was impossible due to lack of time and increased
criteria number. The Investors’ Association and Greenpeace underline
criteria that refer to climate change and social dimensions and at the
same time underestimating local environmental impacts and economic
dimensions. As for Poros and Troizina municipalities, they both
underline criteria which are relevant to the local communities with
Troizina underlying the amount of RES production and Poros the visual
impact. The MCDA technique used was the PROMETHEE II and the preferences
of the stakeholders were presented.
The conclusion is that most stakeholders prefer large RES investments.
Particularly the investors wish to increase their market share and
decrease dependence on imported fuels. Local authorities emphasize on
compensative benefits. Environmental bodies mainly raise issue related
to the greenhouse gases and other pollutant emissions.
However, economic and aesthetic reasons have promoted reactions at the
municipal level. Furthermore, reaction may occur due to NIMBY effect,
environmental concerns, political issues and conflicting priorities. The
MCDA-RES Tool-kit aims to provide a decision-making framework in such
situations where different stakeholders are allowed to participate,
multiple criteria are taken into consideration and several alternatives
are compared.
F. Presentations by the
Stakeholders
F.1. Presentation by Ms. Dorien
van Cooten; Province of Utrecht
MCDA-RES in the province of Utrecht
This presentation deals with certain problems occurred in the Province
of Utrecht due to the need for an increase in RES installations in the
area. It begins with a short overview of the BLOW agreement which
imposes 50 MW of wind energy installed by 2010 in the Province of
Utrecht. Today a new regional plan is being prepared. This has been made
public and participation is allowed for everyone. Up till now there are
6000 reactions as opposed to 350 in 1994. This response is due to easy
access of information, to an active communication policy, to a definite
policy decision and to nine (9) information meetings that have been
held.
The topics concerned are:
Noise nuisance
Problems of shade
Landscape / “pollution of the horizon”
Usefulness and need of wind energy
Birds and nature
Value of houses
F.2. Presentation by Mr Hugo Gordijn
MCDA and RES, the French experience
This presentation deals with RES in France and the country’s policy in
that area. In France, when dealing with renewable energy projects, there
is a strong top-down decision-making approach. The energy system is
quite centralised and the decision system lacks transparency.
The current policy dictates that by 2040, France will move to a
decentralised energy system with part of the energy produced by hydrogen
and the other part either from renewable energy sources or from nuclear
energy. The truth is that there is a lot of pressure from the EU in
order to comply with the Kyoto protocol.
F.3. Presentation by Mr Velimir
Segon; Hrvoje Pozar Energy Agency
Status of biomass and bioenergy in Croatia
This presentation is about biomass and bioenergy in Croatia as well as
the energy situation of the country. The energy supply of Croatia is
mostly covered by liquid fuels, natural gas and large hydro stations.
3.8% of the energy supply is covered by renewable energy sources and if
large hydro (>5MW) is included the percentage goes up to 17.7%. However,
RES potential is considered to be as high as 46%.
The energy institute of Hrvoje Pozar was founded in 1994 and it is a
non-profit public institute with 63 employees at the moment. The most
important biomass and waste utilization energy programme is BIOEN,
started in 1997 and its main aim is to increase the use of
environmentally-sound and cost competitive bioenergy on a sustainable
basis to meet future energy demands. The vision is to provide 15% of
Croatian energy needs from biomass and waste. The results of the
programme so far can be summarised as follows:
Bioenergy regional and local potential estimation
Demonstration projects
National legislation preparation and implementation
Contribution to the Energy Strategy of the Republic of Croatia and inclusion of bioenergy as the most important renewable resource in a near future
Promotion and information dissemination (publications, leaflets and videos)
Students education, involvement and participation
There is also the International Energy Agency’s Bioenergy Task 29 which looks at the socio-economic drivers in implementing bioenergy projects and Croatia is taking part in it.
F.4. Presentation by Mr D.
Manzaris; Local Municipal Development Company
MCDA and RES in Lesvos
This presentation deals with AIOLIKI S.A., a local municipality
development company activated in the field of wind energy. AIOLIKI was
founded in 1991 and initially (in 1994) installed two (2) wind turbines
(300 kW each) at a site located eight (8) Km south of Mytilene. Then, it
installed another (225 kW) turbine in the same site (in 1997). There is
also a photovoltaic array in the specific location. The future plan for
the area is the creation of a bigger wind energy park (with total
installed capacity of 2.5 MW) which is additionally going to be used for
environmental education purposes.
F.5. Presentation by Mr Ilias
Plastiras; Sustainable Energy Consultant
Sustainable Energy Action Agency
This presentation concerns the Sustainable Energy Action (SEA) agency,
which is promoting sustainable energy use in Southwark & Greater London.
It is an institution established in 1998 as a SAVE Energy Agency. SEA
carries out the following tasks for businesses:
Energy audits
Overheating audits - SHADE
Renewable ESCO
Transport Advice
Business Travel Plans
Environmental Audits
Low Energy Design Consultancy
SEA is also a partner in an EU-ALTENER project for saving electricity and purchasing “Green Electricity” in office buildings in seven European countries. The aim of the project (among others) is to disseminate a methodology for detailed analysis of the electricity demand in office buildings.
F.6. Presentation by Mr Santiago
Gomez; EHN Company
How to implement wind power with public support; the experience
of EHN
This presentation deals with EHN, an independent company which solely
focuses on renewable energy projects, with the mission to become an
international benchmark and to demonstrate the technical and economic
viability of a sustainable energy model. Up till now the company has
installed 2,229 MW.
Due to the fact that wind farms are located in natural habitats, there
is a need for care for the environment. Moreover it is advisable to have
the acceptance by the local community as well as the need to create some
kind of added value at a local level.
The Navarre is the location where the first company’s wind farm was
installed. It is an area with excellent wind potential and it is visible
to 250,000 people. The main key was to avoid the risk of public
rejection. Authorities, political institutions, environmentalists,
conservationists and mountaineering groups were initially contacted and
invited to participate in the decision-making process. After the
consultation the Regional Government finally approved a 600MW plant.
F.7. Presentation by Prof.
Joaquin Coromiras; Academic Investor
Experiences from Spain: 1979 - 2004
This presentation deals with the early developments in Spain for the
wind energy projects, started in 1980 with educational activities, and
moved on with public open contest for wind turbines. The first wind
farms were mostly installed by public companies and the bottom line was
that wind is interesting if MW are installed and not kW. The first
public action was the promotion and support of wind farms as well as
some regional activities like the wind map of Catalonia.
Currently, opposition is associated with the increased number of wind
farms already present and with the obstacles from some regional
governments. These arguments are getting stronger due to the fact that
there were negative experiences from the early developments, from lack
of procedures and lack of culture.
Currently there are lots of changes in the wind sector from the new
government in Catalonia. The wind tower vandalism stopped, there is a
new wind map with better criteria and it brought many social actors in
the discussion table. But there are still some things lacking today like
open local participation, regional or national wind association,
integrated environmental culture and involvement of the universities,
particularly in environmental and social issues.
F.8. Presentation by Mr M.
Safos; Greenpeace Hellas
Greenpeace and RES
This presentation reveals the need for a switch in renewable energy
sources by presenting the various problems caused by the current energy
situation.
The increase in the mean earth temperature is a fact. Our lives are
going to be affected by the climate change in the following ways:
The global average sea level has risen by 10-20 cm over the last century and models project it will rise another 9-88 cm by the year 2100.
Coastal zones and small islands are extremely vulnerable.
Salt-water intrusion will reduce the quality and quantity of fresh water supplies.
1 million species will vanish by 2050.
More extreme weather events are expected. Insurance companies are already alarmed by the increased damages, attributed to weather events.
Ecosystems will be
affected in various ways.
Up to 400 million people may have to immigrate because of climate
change, causing frictions between countries.
There is a linear
relationship between the amount of fossil fuels burned, the rise in CO2
concentration, the earth’s temperature rise and the damages. Greece is
committed to restrict increase of emissions (in year 2010) to no more
than 25%, above 1990 levels but the current situation is not very
promising. Other countries have more successful visions for the future.
The renewable installations in Greece are also well below the
obligations to the EU. The positive effects of renewable energy is not
only restricted to climate change but it also creates jobs, promotes
energy independency, promotes peace, helps local development and creates
a better environment. There are three main obstacles that have to be
overcome and those are license permit procedures, grid in areas with
high wind potential and legal implications. Public Power Corporation
(Greece) should set up an ambitious vision to gradually phase out brown
coal and switch to clean forms of energy.
F.9. Presentation by Mr Ach. Plitharas; WWF Hellas
WWF and RES
This presentation from the representative of the WWF Hellas, underlines
the problems from the current energy situation around the globe and in
Greece particular.
There is a need to switch to renewable energy sources. Recent studies
showed that many terrestrial species will become extinct by 2050 due to
climate change. There is also the obligation to fulfil the Kyoto
commitments.
The Greek picture is that currently RES contributes by 1.2% to the
country’s electricity production. Nevertheless, due to pressure from the
EU an increase in the share of RES power production has been noticed.
The main efforts are for wind and small-scale hydro. The benefits for
switching to RES are the following:
Environmental protection
Independence from oil
Reduction in greenhouse gases emissions
Toxic waste reduction
New employment generation
Increased competitiveness
Income gains by cash flows though EU programs and subsidies
Nevertheless there are many
implementation problems as well as disadvantages for renewable energy
projects. Those are the bureaucracy, lack of cooperation between
stakeholders, no CO2 tax, no “green” prices, no tax exemption or
deduction for RES and insufficient electricity grid.
The WWF’s proposals are the following:
RES pricing reconstruction
Effective subsidies for RES projects
Tax exception or deduction for RES both at the household level and the commercial sector
Research and Development: administrative support of demonstration projects
Full integration of RES into the cohesion fund and the structural funds
Simplification of the authorization procedures, by incorporating the principles of sustainable development
Substantial briefing of local communities in order to understand RES benefits
But the most important of
all is to promote energy saving as most of the energy used today is done
in an inefficient way.
F.10. Presentation by Ms Anna Sera; Local People –general public
The windmill project in Coma Bertran
This presentation is about a windmill power plant in Coma Bertran
(Spain) and the conflicts rose from the local communities. The project
is initiated from a company called GERRSA and it involves the
installation of 16 windmills in the towns Vallbona de les Monges and els
Omells de na Gàia.
The actors involved in the project are the Catalan government and
parliament that act according to the wind energy map, the company
GERRSA, as well as the Senan and Valbona councils. The people of Senan
have worked up till now to stop the project by meetings with politicians
and scientists, with demonstrations, informative propaganda on the web
and local mass media as well as organising excursions. The local people
feel frustrated because the project was formulated without asking their
opinion.
G. Simulation Exercise
The Friday morning session started with a short navigation through the
MCDA-RES Tool-kit in order for the participants to obtain an overview of
the whole procedure. Then the first task given to the participants was
to find the impact matrix of the Troizina case study so as to start
familiarize themselves with the Tool-kit. The first model used in the
Training Course was the PROMETHEE. With the aid of the MCDA-RES project
scientists who supervised the Friday’s session, alternatives were
created and pertinent evaluation criteria were established. The
stakeholders-guests, participating in the simulation exercise, set the
criteria weights, and then the results were formulated. The second model
used was the REGIME, and the same procedure was followed. The third
simulation model used was the NAIADE which was used for the creation of
the Social Impact Matrix. This is a type of evaluation used by the
specific method. During the simulation exercise, each participant was
given a role as stakeholder, which was based on their identity so as to
have a more realistic approach in the simulation of the decision
process. The way the participants were allocated to roles for the
Training Course is shown in the Figure 1 below:
H. Summary regarding user comments and
requirements
During this session the participants had the opportunity to see how the
MCDA-RES Tool-kit can be applied and comment on its functionality. One
of the first comments was that the Tool-kit gives a structured way of
the whole bargain process. Also the DMs are motivated to cooperate in
order to reach a decision, thus it becomes easier to understand each
other. Those who participated in the Training Course stressed out the
fact that it is quite beneficial as a useful guide for peoples’ minds.
Generally, the whole process of understanding and learning the Tool-kit
urges the DMs to clear out explicitly their preferences. Finally, it was
mentioned that the eight-step approach which is provided by the Tool-kit
and leads the decision process, is quite well understood.
Furthermore, the participants expressed some requirements regarding the
Tool-kit. One of them was that when the Steps appear on the screen, it
should not only be their number but their name as well. In this way, the
user has a better understanding of the eight-step approach. On the Step
concerning the formulation of the criteria, the way these are being
calculated should be more transparent in order for people to have a more
clear view of the whole procedure. Some people also expressed the view
that the procedure becomes a bit complicated, since the calculation of
many criteria is involved in the process. Concerning the evaluation of
the criteria in PROMETHEE, only the criteria ‘Net Present Value of the
Investment’ should be included. The ‘Pay-back period’ was not considered
necessary for the evaluation.
It was decided that a detailed questionnaire regarding the
user-friendliness of the program will be circulated and responses will
be incorporated in the whole agenda.