Frequently asked questions

What problem does this innovation solve?

Most multi-story buildings waste small but continuous energy through trash chute impacts, friction, and elevator airflow. These systems recover part of that otherwise lost energy and turns it into clean micro-energy for shared building uses.

How does the trash chute system work?

It combines three parts:

1. Impact base plate: captures energy when bags land.

2. Friction panels: harvest energy as bags slide down.

3. Rotating cylinders: spin when hit, adding extra recovered motion.

Together, they convert everyday waste disposal into small, steady amounts of electricity.

How does the elevator turbine system work?

As elevators move up or down, they push air through the shaft. Small turbines capture this forced airflow and spin to generate electricity — like tiny wind turbines hidden inside the building.

How much energy can it really make?

A typical multi-family building could recover 20–40 kWh per day combined from both systems, enough to power a 2-bedroom apartment for a full day.

Where does the recovered energy go?

It feeds a small battery bank or connects to the building’s existing backup system. The recovered power can offset low-demand loads like LED lighting, lobby screens, or elevator lights.

Is it safe for residents?

Yes. All parts are enclosed and designed not to interfere with normal trash chute use or elevator function. Components are modular for easy inspection or replacement.

How much does it cost to install?

For a typical high-rise with four elevator shafts:
Trash chute panels & impact plate: ~$7,000
Elevator turbine arrays: ~$20,000–$30,000
Control system & battery storage: ~$7,000
Total: ~$34,000–$44,000 per building (with four elevator shafts), depending on scope. Final cost depends on building size, retrofit scope, and desired energy storage setup.

How much maintenance does it need?

Minimal. Most checks align with normal building maintenance schedules. Parts like turbines or cylinders are modular and easy to clean or replace.

Does it qualify for LEED or green credits?

Yes — it can help earn LEED Innovation credits, Energy & Atmosphere points, and contribute to local energy efficiency rebates or carbon savings.

Can it be retrofitted into existing buildings?

Yes — both systems are designed to work in existing trash chutes and elevator shafts with minor modifications. No major structural changes are needed.

Who is behind this idea?

This innovation was developed by Abdulrahman Allam, M.Arch, M.C.M., an experienced architectural designer and construction manager focused on practical ways to make buildings greener and more efficient.

How is the system monitored?

A simple control unit tracks energy output, battery charge, and basic performance. Data can be integrated into the building’s existing energy dashboard if needed.

Can this be scaled for larger buildings or multiple towers?

Yes — the design is modular. Larger towers can install more panels, turbines, or impact plates. Multiple towers can link outputs into a larger micro-grid for bigger savings.

Have more questions? Contact me here. I welcome ideas, pilot projects, and technical partnerships.