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Tender CHALLENGES / Ioannina

Ioannina is the capital and the largest city of Epirus, a north-western region of Greece. Ioannina has a small, inhabited island within its area, which includes the so-called lake Pamvotida, where there are regular transportation services, using small boats, between the island and the city, with an important presence of tourists also for short periods of time. The Municipality aims to make this lake as green as possible, in collaboration with the island’s local community, as well as other stakeholders with activities in the lakeside area, improving the behaviour of various target groups (tourists, residents, businesses, etc.). 

Envisaged solution

Ioannina is looking for socio-technical systems based on smart combinations of software and hardware (such as IoT sensors) that enable data collection, environmental impact monitoring, and facilitate behavioural change aimed at the use by tourists, residents or other stakeholders.

For instance, based on data about the factors of human activity that turn the lake into a greenhouse gas factory, an application could be developed that will be used by the residents in the area, tourists visiting the islet and other locations surrounding the lake, as well as owners of restaurants, hotels, or other businesses operating on site. Thanks to the app, they might be helped to figure out their footprint in the lake’s greenhouse gas factory, and how to change it based on their choices, e.g. on waste management, transportation, food management, agricultural activities, lake sports, etc. Gathered data should be made available to the Municipality for decision-making on the protection of the lake’s ecosystem and how to reduce the carbon footprint of the City.

Information on the location of the experimentation

Ioannina city is located in northwestern Greece, built next to Lake Pamvotida, at an altitude of 480m and surrounded by the mountainous landscape. Lake Pamvotida is one of the oldest and deepest lakes in Greece, known for its natural beauty, cultural significance, and ecological value. It covers an area of approximately 20.5km2, with a maximum depth of around 5.5m. Lake Pamvotida faces environmental challenges, including pollution and water quality issues.

Land uses around Lake Pamvotida vary, reflecting a mix of urban (western area), agricultural (northeast area), recreational, and natural areas (e.g. Limnopoula sports centre in the northeastern part of the city and wetlands in the northeast part). The small inhabited island of the lake features traditional houses, restaurants, cafes, and a museum. 

The challenge of Ioannina City comes from the fact that the lake and its surrounding area are a greenhouse gas factory. This for two main reasons:

  • firstly, because the water body itself, due to eutrophication, produces methane;
  • secondly, because the lake, as a natural resource of the city but also as a landmark, attracts and/or serves various activities and productive sectors: tourism, catering, hospitality, recreation, sports, crops, livestock farming, etc. 

The aforementioned activities make up a puzzle in an urban, semi-urban and peri-urban environment within the administrative boundaries of the Ioannina Municipality.

Experimentation should focus on various target groups (at least 3), such as residents, tourists, businesses in the tourism sector and farmers and, consequently, in a relevant area where the selected target group is more “present”. In neighbourhoods of the city such as Sfageia, Mavili Square, Molos, on the island, and in the streets: Papagou, Garibaldi, Filosofou, and Papoulia, there are many businesses in the tourism sector. Also, these areas attract tourists visiting the city as well as residents. Additionally, Limnopoula sports centre and park could also be a location of interest when residents constitute the target group. Moreover, agricultural activities are located in the communities of the Pamvotida Municipal Unit (e.g.Katsikas, Koutselio, Kastritsa, Loggades). The experimentation should take place in at least one of the aforementioned areas of the Municipality. 

Location of the experimentation area (Pamvotida lake)

Specific requirements

  • Solutions that promote datasets creation, including data acquisition by IoT sensors and the collection of real time environmental data
  • Solutions that allow relevant data visualisations, both for remote monitoring purposes and to improve decision making
  • Solutions that integrate created datasets and embed visualisation functions in a single tool;
  • Solutions that embed gamification and/or educational aspects, such as general or specific advice on how to improve one’s own behaviour, understand data visualisations, etc.
  • Solutions that are promptly available as applications (for smartphones and tablet PCs, on Android and/or IOS operating systems).  

Minimum requirements

Data usage

See “data generation” point

Data generation

The solution should at least generate the following datasets: ​​user generated data (e.g. user profile, actions taken, cumulative impact, location, engagement metrics, environmental knowledge and awareness, social interactions and sharing of eco-friendly practices etc.), water & air quality data, meteorological data, and GHG emissions data. Additional/desirable: waste generation & management data or wastewater/rainwater data or sediment & ground quality data or livestock farming & agricultural crops methods data.

Data visualisation

The solution should at least enable visualisation of the following datasets: ​​user generated data, water & air quality data, meteorological data, and GHG emissions data. In addition, data correlation and temporal variation visualisation is expected. Additional/desirable: waste generation & management data, wastewater/rainwater data, sediment & ground quality data and livestock farming & agricultural crops methods data visualisation.

Socio—technical solution A

The active engagement of citizens should at least be ensured during the 12 months of experimentation.

Socio—technical solution B

The way active engagement of citizens will contribute to a better performance of the solution should be described in detail.

Socio—technical solution C

A minimum number of 100 citizens should be engaged by the provider during the 12 months of experimentation.

Socio—technical solution D

The solution should at least demonstrate impacts on the following citizen behaviours”: waste generation and management (e.g. waste reduction, composting, recycling) and transportation choices and/or livestock farming & agricultural crops methods

Socio—technical solution E

The provider should at least involve the following local stakeholders during the 12 months of experimentation”:

  • Natural Environment & Climate Change Agency (Management Unit of the Protected Areas of Epirus) and
  • Businesses of the tourist sector (Hotels, Restaurants, Catering, Boat owners) fromthe area of the experimentation and/or
  • Businesses of the primary sector (livestock farming & agricultural crops methods).


Use of the solution should not imply the release of personal data unless for specific and motivated purposes.


The provider should specify how the solution can be scaled from the site of experimentation to the broad City level.


The provider should specify which rules/regulations should be temporarily lifted for the purpose of the experimentation”


The provider should specify the conditions under which the same solution can be adopted by other Cities with similar challenge.

To participate to the tender, please read our tender documentation, this page is a simple overview about the Ioannina challenge. To visit the documentation, click on the green button below.


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