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Opinion

Introduction to Various Sources of Renewable/Sustainable Energy Technologies

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By Aminu Owonikoko

The use of energy is pivotal in achieving the interwoven environmental, social and economic objectives of renewable development of human race (Jose Goldenberg, 2000). If these pertinent objectives have to be achieved, the types of energy the world manufacture and the various routes that we employ to utilize them will have to be different and altered. Otherwise, the damage to the environment will escalate, the growth in the world economy will be shambled and inequity may accelerate.

World Energy Council opined that the world would be reliant on non-sustainable energy for decades to come. Both developed and developing countries are certain to expand their use of non-sustainable energy (fossil fuels). Yet, there will be strong resistance to this expansion if the non-sustainable energy community cannot demonstrate that it can be accomplished in a manner that reduces environmental degradation.

Sustainable energy sources have been pertinent for humans since the inception of civilization. Sustainable energy technologies use facilities that are not conventionally subject to erosion. The energy that reaches the earth’s surface from the solar radiation is about 1000 times more than all the world’s energy requirements.

Examples of other sustainable energy sources are itemized and succinctly described below apart from Biomass (i.e. Energy from Biomass) which has been addressed in the previous BOSS Newspaper:

1.      Solar Energy – Energy from the sun

2.      Wind Energy – Energy from the wind

3.      Tidal Energy – Energy from the tidal waves

4.      Hydro Energy – Energy from the hydro

5.      Wave Energy – Energy from the wave

6.      Geothermal Energy – Energy from underground hole

1. Solar energy technologies have enormous potential. The energy from the sun cannot wear out and is void of environmental pollution. The light and heat that is emitted from the solar energy reaches the surface of the earth free without any stress.

2. Energy from wind is widely available and is popular with other sources of sustainable power but is broadly spread and diffuse. Before the industrial revolution, energy from wind is globally employed as a source of energy, but because of non-similarity in reliability and cost, wind energy was replaced by fossil fuels.

3. Tidal energy systems has been used to generate electric power as a result of rising and falling tides similar to the way employed in hydroelectric energy station. That is, there is need in transforming the tidal energy to electricity which is synonymous to the approach or system employed in energy station of hydroelectric. Most important thing is a dam across estuary. Constructing dams is an exorbitant operation. The most excellent tidal stations are those areas where the lengths of the dam that are not necessary are minimized especially when the bay has a small opening.

4. Hydro energy is generated from falling water. In the global world today hydro energy is the major channel of sustainable energy. Earth’s water cycle can be sourced in many approaches. Conventionally, the usual variety of hydroelectric station store water in a reservoir via the employment of a dam on a river. In order to generate electric power from hydro energy water is expelled from the flows of reservoir via turbine, rotating the turbine, which subsequently generate power by switches on a generator. It is not compulsory that the dam should be large what really pertinent is how the water in the river would be channelled via turbine. Furthermore minute duct/passage to channel the water in the river via a turbine have employed by some hydro energy systems.

5. Wave energy gets its power from wind on the sea. The wind that blows across the sea cause ocean waves. Wave energy plants are very scarce simply because it is difficult to harness wave energy and change it into electric power. However it requires huge amount and it is not cost effective. Although they are strong and fierce channel of energy. The most effective way of producing power from waves is by the usage of pool ( that is, pool of swimming water) whereby air is forced in and out of a chamber beside the pool, which enables the water outside rise and fall making waves (i.e. it performs in similitude to reverse in pool wave machine). Although there are a lot of approaches of doing it.

6. The energy that comes from heat inside the earth is known as geothermal energy. Characteristically, geothermal energy underutilized a power and heat facility that is enormous, home grown, pure and dependable. Facilities of geothermal rank from hot water to ground shallow and down deep to the extreme temperatures of molten rock and even rock several miles below the earth’s surface. Geothermal energy systems can be divided into three parts namely the technology of heat pumps, technology of use-direct applications and the technology of power plants.

Reference:

Jose Goldemberg, 2000 World Energy Assessment. United Nations Development Programme and World Energy Council.

Aminu Owonikoko MPhil (UK), MSc (UK), B.Tech (Nigeria) Reverse Innovation, Business Process and Manufacturing Excellence Consultant @ Muniowo Agro Nigeria Limited (RC818651) in Partnership with Ajax Equipment Ltd (www.ajax.co.uk) Mobile Phone No: 08166329954 E-mail: owonikokoak@yahoo.com

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Opinion

Dele Momodu: Charismatic Gentleman @65

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By Yemi Edun

Aare Dele Momodu is undoubtedly one of the most recognisable names, voices, and personalities to emerge from the world’s most populous Black nation Nigeria.

Anyone who has travelled with Bob Dee would understand the magnetic presence he carries from Atlanta Georgia, Accra to Nairobi, down to Central London. He receives nods of admiration, requests for photos, and warm pats on the back wherever he goes. A true cultural ambassador, effortlessly at ease in rich native attire, which his commanding presence makes look truly majestic, he wears native outfits like royalty.

He is a consummate storyteller, an indefatigable workhorse, and one of the most selfless and hospitable people I know. His generosity is legendary. Mention Dele Momodu at any Marriott Hotel in East Africa, and you can expect the red carpet to be rolled out.

I was stunned at Kotoka International Airport as immigration and customs officials broke into chants of “Ovation! Ovation!” while we walked through, it was surreal but perfectly fitting for a man so deeply respected.

Bob Dee is at home with the old and young, with royalty and regular folk alike. There are countless moments that reflect his goodness, but allow me to share just one:

In Summer 2023, while holidaying in Accra with my family, Aare generously assigned his Ghanaian chef to us for two full weeks serving delicious meals until we had to kindly ask him to pause! Not long after, he flew into Accra and hosted us at La Chaumiere his favourite upscale French restaurant, where his presence is evidently cherished.

As my daughter and I prepared to return to London, we discovered shockingly that her passport had expired just a day earlier. I had to remain behind to resolve the issue. By divine timing, Bob Dee called to check in, and upon hearing the situation, immediately sent his driver. We spent that night in his elegant Accra home.

The next morning, using her Nigerian passport, we flew into Lagos. On his advice, I contacted Mr. Governor, and thanks to that call and Bob Dee’s understanding of the terrain, a new British passport was issued the same day.

Happy Birthday, Aare. A charismatic gentleman, who treats all with warmth and deserved respect.

@yemiedundf

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Opinion

A Tribute of Grace to My Younger Brother, Dele Momodu, @65

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By Mama OluwaBunmi Adedayo

My Beloved Aburo,

Your heart beats with the rhythm of compassion,
Your laughter softens the storms of men,
And your pen—yes, that mighty pen—has built bridges where once stood walls.

Today, I speak not only with words,
But with the rhythm of gratitude,
The poetry of love,
And the dance of legacy.

You are more than a name—
You are Dele Momodu.
A spirit of honour.
A vessel of humility.
A generous soul.
A quiet strength wrapped in dignity and thunder.

In you, kindness flows like a river,
And generosity walks hand in hand with wisdom.

You have fed minds, lifted voices,
And sewn hope into the very fabric of Africa.

You write—oh, how you write—
With fire, with elegance, with truth.
You publish, you speak, you dream aloud.
You carry the soul of a president, even when the title passed by.

But allow me this honest moment:
As I turned through the pages of Ovation Magazine,
I searched for a picture of us—
You and I,
Captured in joy, frozen in memory.
But it was not there.

*Yes, I am jealous!*
I say it with a loving smile.
It’s alright… this time.
But when the next milestone arrives,
*When seventy comes knocking—*
*By the grace of God, we shall all be alive.*
And when that time comes,
Let my picture rise with yours,
Let our laughter live in history.
Let it not be forgotten—*again.*

So, as you are honoured today,
And as voices rise in celebration,
Know this, my dear brother:

You are deeply cherished.
You are profoundly celebrated.
And I—your sister, your friend, your family—
Walk with pride in your light.

May joy crown your 65 years,
And may heaven prepare glory for your 70th.

With all my heart and prayers,
Mama OluwaBunmi Adedayo

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Opinion

Towards a Non-Violent Local Government Election in Lagos State

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By Tola Ogunnubi

The upcoming July 12, 2025 Local Government Election in Lagos State is a litmus test for the 2027 general elections.

The election of executives at the grassroots level to run the affairs of the Local Government has always been a mixture of peace and violence between leading political parties, aspirants, indigenes and settlers in the various area councils. Local government elections is a critical element of democracy and governance which provides a vital pathway for new political participants to engage communities and impact governance from the ground up in their quest for good governance.

In Lagos State, elections have always been characterized with violence and peaceful conducts. Clashes between APC supporters and main opponents’ supporters from the PDP have been reported from various parts of the state like Surulere, Agege, Amuwo-Odofin, Ajeromi Ifelodun, Ojo, Oshodi-Isolo and Kosofe LGAs of the state.

Election violence can diminish voter turnout, influence election outcomes, and erode public trust in the electoral system raising concerns about the legitimacy of results according to Yiaga Africa. Political parties should ensure that the local elections is not a zero sum game, whereby the winners takes it all and the benefits of good governance is limited and retained to only party members and loyalists.

The violence that led to the death of Jide Badaru and one other with several people injured in August 2018 in Surulere Local Government should not be allowed to happen again. According to the cousin of the deceased Mr. Babatunde Badaru, a former Local Government Chairmanship Aspirant in his accounts of the violence that characterizes elections in Surulere LGA.

The wanton destruction of properties, continued threat to lives of opposition supporters should be a thing of the past. Since it is a grassroots election, the African communal sense of being should be displayed during the elections. Perpetrators of electoral violence and their sponsors should be arrested and should be diligently prosecuted so as to deter others who see violence as a viable pathway to electoral victory.

Tola Ogunnubi ANIPR wrote in from Abuja Abuja

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