EVERY STEP MATTERS

United Nations Sustainable Development Group [UN SDG] Goals 3, 7, 8 & 11

Nonsuch High School For Girls: Ananya Goswami, Nabisha Thavapraba and Emily Song

Our Focus

  • Goal 3: Good Health And Wellbeing- Ensuring Healthy Lives And Promoting Healthy Wellbeing For All Ages

  • Goal 7: Affordable And Clean Energy- Ensuring Access To Affordable, Sustainable, Reliable And Modern Energy For All

  • Goal 8: Decent Work And Economic Growth

  • Goal 11: Sustainable Cities And Communities- Making Cities Safe, Resilient and Sustainable

Our Idea - I

Imagine a world where our cities harness the energy of footsteps, generating and storing electricity through piezoelectric floors. Every step contributes to powering our future while reducing reliance on the electric grid.What if your simple act of walking could help power a city? Your ordinary footsteps could become a precious source of reliable, clean energy, thanks to the technology behind it: Piezoelectricity.We want to use piezoelectric tiles to generate electrical energy from kinetic energy.

Our Idea - II

  • We plan to use piezoelectric tiles in high-foot traffic areas(central London, underground stations, museums, etc.), which convert this kinetic energy into electrical energy and reward points. These tiles will be durable. This means making it strong and weather-resistant. We will include a protective layer (sealing the tiles with waterproof coatings to protect the electrical components) and an anti-slip surface ( to prevent accidents). ( goals 7, 11)

  • To gamify the experience, users can collect reward points through an app or website on someone’s phone, which must be paired to the tiles to determine how many reward points they earned. As people walk, they can see how much energy they have generated, track steps, and redeem points for discounts on the app/website. The discounts could include retail shops and popular tourist attractions (e.g., the London Eye, Big Ben). The more you walk, the more points you receive and thus more discounts on areas of high tourism

How It Helps

  • Doing so will encourage many people to walk more, reduce reliance on vehicles, and ensure healthy lives and well-being. (goal 3)

  • This system supports tourist attractions, local businesses, and retail shops by promoting them with discounts, thereby aiding the economy (goal 8).

  • Overall, this will help everyone in the global effort to shift to more sustainable and clean communities and cities by lowering the carbon footprint of public and busy spaces (goal 11)

Piezo Electricity

Two Words: Kinetic. Electricity. Piezoelectricity is a process where certain materials generate an electric charge when subjected to mechanical stress.So, what is mechanical stress? In simpler terms, it is the pressure or force applied to an object or material. For example, pressing a button is putting it under mechanical stress !!

How It Works - I

  • 1) When a person steps on the tile, their weight applies mechanical pressure to the surface.

  • 2) This pressure travels through the layers of the tile to the piezoelectric layer

  • 3) The Piezoelectric Effect: Piezoelectric materials are made of crystals or ceramics that create electricity when squeezed or pressed. When you step on them, the pressure causes tiny parts inside the material (dipoles) to move. This movement aligns the electric dipoles, separating positive and negative charges, creating an electric field with a small amount of electricity (a voltage).

  • 4) Wires in the tile collect the electricity.

  • 5) The electricity created is called AC (alternating current), which isn’t always helpful for devices. A circuit changes it into DC (direct current), which can power devices.

How It Works-II

  • 6) A voltage regulator ensures the electricity is steady and not too high or too low.

  • 7) This electricity can be stored for later use, ready to power our cities sustainably

  • 8) Sensors in the tile notice your steps and connect to your phone using Bluetooth

  • 9) Data is Sent to an App: Your steps and energy generated are sent to an app where you can see your progress.

  • 10) Earn Rewards: The app gives points for your steps, which you can use for discounts at shops or tourist attractions.

Why It Works

  • High Population Density: With a population of 124.5 million, Japan's public spaces, especially train stations, see significant movement. This constant footfall generates mechanical stress on piezoelectric tiles, increasing their kinetic-to-electric energy conversion and demonstrating efficiency. Japan strategically places these tiles in high-traffic areas to maximise energy production.

  • Energy Consciousness: Japan faced significant economic costs and reduced energy capacity after the Fukushima nuclear accident. This prompted efforts to cut energy consumption, enforce electricity limitations, and transition to renewable sources. Piezoelectric tiles align with these goals, making them a suitable and welcome investment.

  • Public Awareness: Japan has already raised awareness about piezoelectric tiles through public demonstrations, fostering interest and support. With widespread environmental campaigns and sustainability education, additional posters and initiatives could encourage people to step on these tiles, boosting energy conversion.

Conclusion

  • Health Benefits: Encourages walking and physical activity, promoting SDG 3 (Good Health and Well-being).

  • Education: Inspires awareness and learning, advancing SDG 4 (Quality Education).

  • Clean Energy: Converts footsteps into renewable electricity, supporting SDG 7 (Clean Energy).

  • Economic Growth: Creates jobs in renewable tech and green innovation, supporting SDG 8 (Decent Work and Economic Growth).

  • Innovation: Promotes sustainable tech and infrastructure, meeting SDG 9 (Innovation & Infrastructure).

  • Urban Efficiency: Optimizes energy use in high-traffic areas, aligning with SDG 11 (Sustainable Cities).

  • Lower Emissions: Reduces reliance on fossil fuels, aiding SDG 13 (Climate Action).

Thank You

Together, let's make this world a better place.
An SDG Goals Presentation by Ananya, Nabisha & Emily From Nonsuch High School For Girls

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Thank you

A SDG Goals Presentation by Ananya, Nabisha and Emily From Nonsuch High School For Girls