Beirut’s Power Network

By Jad Abi Rached & Elie Tohme

IBDAA 2021 2nd place winners
Category: Product Development

After being severely damaged by the explosion of August 4, 2020, the power grid of Beirut needs to be recreated and redesigned.

For this to happen we will create a new design for the grid, implement new elements and technologies and “upgrade” the entire infrastructure.

Since electricity in its self is now an indispensable need, it is obvious that everyone is aware of the severity of the problem, having no power basically means not being able to do anything in these modern days.

Hence our Job is to restore the grid and improve it along the way, we will make it as every single building or household will be pseudo-independent power wise and “forward compatible”.

The targets or beneficiaries of this project are all the citizens living in Beirut or at least the people who will be directly or indirectly involved with the restoration of the line. But ultimately all the Lebanese citizens will benefit from this concept.

The state in itself should adopt this solution early on, because, in its simple form, restoring the power line is something that must be done regardless of anything else, it is the state’s duty to reconstruct the infrastructure so why not think of the future while doing it?

Presentation below

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By Jad Abi Rached & Elie Tohme

Beirut's Power Network

In this presentation we will show potential solutions for problems we are facing in Beirut, especially after the explosion. Our targeted problems will be related to electric power.

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More than 30,000 m of overhead lines in the areas which are in proximity to the explosion site, sustained varying damages in their components and structures. Within only 500 m of the explosion site, the transformers, cables, ventilation systems, and even the outer structure sustained severe damages and went completely out of operation.

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We will assume the role of a pseudo consultant office trying to fix the problems Beirut is currently facing, proposing potential solutions to these problems, ways to avoid problems in the future and ways to facilitate the life of the citizens.
We believe that implementing already made solutions are better than trying to develop any new product, because developing that said product will have a long way to go before seeing the results

First, we will need to create a draft, then the actual document, then finalizing the plan, then wait for a sponsor or a backer for the project, then creating the actual product and at the end waiting for the feedback after the implementation.
In case of an already made tech the product is already finalized and the data is already collected.

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After the huge impact of the explosion on the power grid and electrical installation in Beirut, the main problem is to fix the grid in order to provide power back to the damaged areas.

While doing so we will implement new ideas and technologies to make Beirut even livelier, meaning we are going to restore and upgrade.

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This step won’t have any additional cost in terms of money, it will only cost a little bit of time, in the long run it will help us save money and time and even avoid potential problems.

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Our second solution is the solar street lamps.
This idea might have already been mainstream and pretty much everyone should know the basic idea about it. But nevertheless it’s still a great concept that has a huge impact on environment and efficiency.

The combination between PAVEGEN & solar light can keep Beirut’s streets alive independent from the power grid.

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This step won’t have any additional cost in terms of money, it will only cost a little bit of time, in the long run it will help us save money and time and even avoid potential problems.

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Here is a simulation for a basic inverter circuit the input of this circuit is DC the circuit will compare an AC signal with a triangular signal giving us an output that can be assimilated as an AC signal thus transforming the DC signal to AC.

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There are different kinds of outputs depending on the inverter circuit like square wave output, modified sine wave output and pure sine wave output.

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Types of solar power systems
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Taking a bimodal system as example, we charge the batteries through either the solar panels or the grid power through the inverter and charge controller, then the load can use either the power from the grid in case the batteries where flat or power from the solar system to economise.
If the batteries are full and the panels are still generating power we can “sell” this power back to the grid not in terms of money but in terms of KWH.

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More info

PAVEGEN

PAVEGEN is the name of the company that created this the revolutionary PAVEGEN tile that generates power from the steps of the people, in other words the more people there is, the better.

PAVEGEN tiles might not be able to generate enough power to be send back to the grid, but it’s a great idea to keep the streets illuminated.

Bimodel System

The parts and components of these systems are kind of expensive Solar panels cost $0.70 to $1.50 per watt on average but can run from $0.30 to $2.20 per watt. A typical 250 watt panel costs $175 to $375 on average. For an entire solar system, the average homeowner pays $3,910 to $6,490. Panels can cost as low as $1,890 and as high as $13,600.

Solar batteries range from $5,000 to $7,000+ and from $400 dollars per kilowatt hour (kWh) to $750/kWh.

Inverters typically range between $1000 and $1500. That cost can go up quickly though as the installation gets bigger.

A good charge controller can cost $250-$700 depending on the power rating.

These systems can be considered an investment in terms of green energy future economization and especially in Lebanon ending the kahrab/moteur cycle.

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