Energy Keeper
Millions of people use their bikes every day. Without knowing it, they create a huge amount of energy that goes into the void. Most of this energy is generated by braking. Energy Keeper is a device that designed to collect it and redirect to the city power grid, becoming an additional source of energy.
The main part of the device is a bearing ring and a magnetic disk with weights for better rotation. The device uses the technology of regenerative braking. The disk folows the rotation of the wheel, accumulating energy, but during braking, the disk continues to move by inertia, transferring its kinetic energy to the induction coils of the charger. Thus, electrical energy is accumulated, which, after returning the charger into the storage, passes into the city power grid. The user receives a certain number of free rides on public transport as a reward for usage the system.
The main part of the device is a bearing ring and a magnetic disk with weights for better rotation. The device uses the technology of regenerative braking. The disk folows the rotation of the wheel, accumulating energy, but during braking, the disk continues to move by inertia, transferring its kinetic energy to the induction coils of the charger. Thus, electrical energy is accumulated, which, after returning the charger into the storage, passes into the city power grid. The user receives a certain number of free rides on public transport as a reward for usage the system.
To start the trip, you need to identify yourself using the QR-code, and take two items: a magnetic disk that takes energy from braking wheels and a charger that accumulates the collected energy.
Detailed instructions are in an application that will tell you how to take and install the disk and charger on your bike.
The disk storage box contains 4 sets of disk and charger. The storages are distributed evenly throughout the city so that everyone can have access to the disk.
The disks are available in two sizes, for the most common wheels: 26'' and 29''.
The disk can be attached to the front wheel of the bike using three fasteners located on the back side clinging to the wheel rim. The charger is attached to the fork of the front wheel, overlapping the disk to collect the generated energy.
The charger is designed to be attached to any wheel fork diameter. It also has grooves for docking inside the storage and transferring energy to the city power grid.
At the end of the trip, the app shows the results including efficiency, amount of electricity generated, as well as free trips earned to use on public transport.
