
TEKNOFEST High School Efficiency Challenge (EC) Electric Vehicle Competition is an international competition organized in line with Türkiye’s National Technology Initiative vision, aiming to enhance young people’s competencies in sustainable transportation technologies. While encouraging high school students to develop student-friendly technologies, the competition also helps them acquire skills in teamwork, critical thinking and project management. environment technical likeCompetition Objectiv
EN
Ahmet Safa Çetin

Citroën C4 X is a model developed by the French automaker Citroën and positioned in the compact sedan segment. Introduced in 2022, the C4 X is built on the CMP platform and shares many technical features with the C4 hatchback. The model is produced in gasoline, diesel, and fully electric (ë-C4 X) variants.Design and Structural FeaturesThe Citroën C4 X features a fastback-style sedan design and stands out with its elevated ride height inspired by SUVs. The vehicle’s aerodynamic structure optimize
EN
Ömer Faruk Günay

Electric Vehicle Power Systems encompass all components and subsystems responsible for storing converting managing and delivering electrical energy required to propel a vehicle. These systems fundamentally differ from the powertrain components of conventional internal combustion engine (ICE) vehicles as they use electrical energy instead of fossil fuels. The core of an electric vehicle EV power system consists of the battery pack electric motor power electronics control unit and transmission. Th
EN
Ömer Said Aydın

Tesla Model S is a fully electric luxury sedan produced by Tesla, Inc. since 2012. The vehicle stands out for its long-range capacity, electric drivetrain, and driver assistance technologies. Its minimalist design and software-based control systems are among the distinctive features in the electric vehicle segment.Design and Structural FeaturesThe Tesla Model S features an aerodynamic exterior design. Integrated door handles and a panoramic glass roof are key design elements. Inside, the cabin i
EN
Ömer Faruk Günay

Peugeot e-208 (P21) is a fully electric hatchback model developed by the French automaker Peugeot and positioned in the B-segment. First introduced in 2019, the P21-coded second-generation 208 is produced with both internal combustion engine options and an electric variant (e-208). The model was refreshed in 2023 with an updated electric motor.Design and Structural FeaturesThe Peugeot e-208 is built on the CMP (Common Modular Platform), which is compatible with both internal combustion and elect
EN
Ömer Faruk Günay

Togg, as one of Türkiye’s global technology brands operating in the mobility sector, delivered a total of 39,000 vehicles in 2025 with the T10X and T10F models and increased its total user base to over 88,000. The T10F model, developed after the T10X—the first smart car with all intellectual property rights belonging to Türkiye—was introduced to users in the same year.Models and Safety PerformanceThe T10X and T10F models achieved the highest possible rating of five stars in Euro NCAP safety test
EN
Çağrı Taşkın

The Fiat Topolino is an all-electric microcar developed by the Italian automobile manufacturer Fiat, designed for short-distance urban transport in Europe. Introduced in 2023, this model shares the same technical foundation as the Citroën Ami, which is also under the Stellantis Group umbrella, and is classified in the L6e category within the European Union.DESIGN AND STRUCTURAL FEATURESThe Fiat Topolino has a body design with minimal dimensions. The vehicle is 2.53 meters long, 1.4 meters wide,
EN
Muhammet Emin Göksu

Peugeot Expert Traveller (K0) is a multi-purpose passenger vehicle developed by the French automobile manufacturer Peugeot. First introduced in 2016, the model is built on the EMP2 platform. It is offered with diesel and electric powertrain options in various seating configurations and is commonly chosen for professional transportation, tourism, and large family use.Design and Structural FeaturesThe Expert Traveller shares the same architecture as its commercial counterpart, the Expert Van, but
EN
Ömer Faruk Günay
ElElectric vehicles (EVs), as a significant part of sustainable transportation and clean energy systems, have experienced remarkable growth in recent years. Unlike traditional vehicles powered by internal combustion engines relying on fossil fuels, EVs operate with electric motors and use rechargeable batteries for energy storage. Positioned at the forefront of global efforts to reduce carbon dioxide (CO₂) emissions, EVs also represent a key innovation in the automotive industry.Principles of Oper
EN
Ömer Said Aydın

Electric vehicles are increasingly becoming more prevalent in the international market. To meet future demand, existing battery technologies must evolve. It is now fully understood that the technologies used in current lithium-ion batteries cannot adequately meet today’s needs, and solid-state batteries are seen as one of the main alternatives to address this issue.Working PrincipleUnlike conventional lithium-ion batteries, solid-state batteries use solid electrolytes instead of liquid electroly
ENSude Nur Durgut