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Solutions to Clean Power to Remote Off-grid Mining Operations in Nigeria

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Tarik Sfendla Wartisla Off-grid Mining Operations in Nigeria

By Tarik Sfendla

The energy markets are undergoing a massive transformation as governments around the world transition away from fossil fuels towards the integration of renewable energy. This trend is clearly visible in the mining industry as demonstrated by recent power projects in South America and in Australia.

According to Bloomberg New Energy Finance, in 2018, mines purchased 1 GW of renewable energy generation assets; this amount tripled to reach approximately 3.5 GW in 2019, 90% of which consists of hybrid solutions.

Electricity demand for the mining industry is expected to increase significantly in the coming years as increased mine depth, harder rock and greater water desalination needs lead to higher energy intensity for the industry.

Whilst electrification of operations and vehicles is reducing certain emissions and generating cost savings, stakeholder targets to reduce emissions as part of the EESG (Environmental, Economic, Social & Governance) plans, is increasing the renewable share of the energy mix, which of course requires high flexibility in the generation to balance intermittent renewables.

In Africa, the mining sector faces inherent challenges, access to the power grid and grid reliability being the most significant. With most electricity supply coming from conventional power plants (coal, oil or gas), operators are challenged on the one hand with highly volatile operating expenses due to rising fuel costs, and by inefficient, unreliable power supply leading to costly production disruption and revenue losses on the other. Weak infrastructure and water availability compound the challenges for mines, particularly in remote, off-grid locations.

The combination of these trends and particularities of the African markets are setting the scene for the integration of renewables for the mining sector. A recent study by McKinsey showed that moving to renewable electricity sources is becoming increasingly feasible, even in off-grid environments, as the cost of electricity storage is set to decline by 50% from 2017 to 2030. This is especially good news for Africa where the cost of solar energy generation could be among the lowest in the world.

It also represents a huge opportunity for operators in Africa, where Wärtsilä has developed a range of competitive strategies to deliver efficient and reliable power supply solutions to support the mining sector on its path towards a renewable energy future.

In Tanzania, the Geita gold mine was experiencing reliability issues and power shortages as its ageing power plant was reaching the end of its useful life. It needed a reliable power generation solution to support its growing operations.

Wärtsilä delivered a 40 MW flexible power plant and agreed to a 10-year operation and maintenance (O&M) package, integrating technology with lifecycle services to provide “always-on” power. The plant secures uninterrupted off-grid power supply, eliminating revenue losses from power shortages, while the O&M agreement is tailored to the mine’s day-to-day performance requirements.

Maintenance schedules are optimised to minimize costs and production downtime and enhance fuel efficiency. As a result, fuel savings of around 4%, representing $2 million USD, were achieved in the first year of operation. The flexibility of the installation will also facilitate the transition to renewables over the project lifetime.

In Burkina Faso, Wärtsilä has delivered a 15 MWp solar photovoltaic (PV) power plant to the independent power producer (IPP) Essakane Solar SAS, which supplies the Ekkasine gold mine.  The solar PV plant was constructed next to a 55 MW power plant running on heavy fuel oil. The engine power plant provides backup, while the solar farm produces energy during the day. The capability to control and optimise the usage of the solar PV power and engines enables the gold mine to reduce its fuel consumption by an estimated 6 million litres per year and its annual CO2 emissions by 18,500 tons.

Energy Storage technologies are the true game-changer

The integration of energy storage technologies will be the real game-changer, enabling the industry to take full advantage of cheap and plentiful solar power. They have the unique ability to provide a buffer between supply and demand by delivering or storing energy whenever it is most needed. They will become the key building block of the stable infrastructure needed to improve grid reliability and security.

Hybrid solutions, combining flexible thermal generation with storage and solar power operations are now a realistic and cost-effective solution, as the levelled cost of electricity (LCOE) is lower than ever, and costs of storage are set to decline.

In Mali, at the Fekola mine, located in a remote area with no connection to any larger grid, Wärtsilä is providing an off-grid hybrid solution to provide and maintain microgrid stability. The project combines a 30 MW solar PV plant, a 17.3 MW / 15.4 MW energy storage facility and GEMS, Wärtsilä’s advanced energy management system, with the mine’s existing 64 MW power generator to improve power reliability, reduce heavy fuel consumption, save costs and reduce CO2 emissions.

GEMS is a ground-breaking tool, using smart algorithms to dispatch energy storage and multiple generation assets (thermal and renewable) with the right reserve level to maintain high grid reliability for the mine. Gensets are switched off as solar output increases and are restarted based on forecasted data including load demand and weather. The sophistication of GEMS enables energy production optimization to ensure the lowest LCOE.

In addition to ensuring microgrid stability, the project is expected to generate long-term annual savings of 13.1 million litres of heavy fuel oil and reduce the mine’s carbon footprint by approximately 39,000 tons per year. This hybrid storage project is the first of its kind in Mali and in the mining sector, demonstrating the growing case for clean energy and its sustainable and economic potential for mines in Africa and elsewhere.

Increasing energy reliability and lowering operating costs are essential for the mining sector. The optimal solution to solve the power challenges must allow for fast starting with high off-grid availability, high fuel efficiency, fast load following and part-load efficiency to allow high penetration of renewables. The answer lies in a combination of advanced flexible energy generation strategies and the smart use of renewables to guarantee the delivery of efficient and reliable power in remote off-grid locations. Advanced energy management systems are the key technological element required to support the huge inflows of power from intermittent sources.

With an extensive portfolio of energy storage and flexible solutions for energy-intensive operations, in Africa and the rest of the world, Wärtsilä is the partner of choice to support the mining sector achieve its sustainability and cost-saving goals.

Tarik Sfendla is the Market Development Manager, Africa chez Wärtsilä Energy Business

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How Investments in Reskilling and Trust Help Businesses Succeed in the Agentic AI Era

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Linda Saunders Salesforce AI Agents

By Linda Saunders

The ascent of agentic AI, systems that can perform tasks without human intervention, represents not just an incremental technological advancement but a fundamental reshaping of the business landscape. The possibilities for enhanced productivity and innovation are immense. Using AI agents, businesses around the world are unlocking a piece of the potential $6 trillion digital labor market opportunity.

Businesses that fail to adopt agentic AI, however, risk disruption by competitors or savvy upstarts. This demands a proactive and strategic response from leaders. In this new era of human-AI collaboration, leaders must center their efforts around two key pillars: large-scale employee reskilling and establishing a trustworthy AI ecosystem.

Reskilling for the agentic AI era

With just 15% of workers saying that they have the education and training necessary to use AI effectively, reskilling must be a priority for every business leader.

Employees must be given access to learning opportunities so they can adopt human-AI collaboration skills, including a foundational understanding of agentic AI and prompt engineering — a way to provide clear and effective instructions to AI systems.

Consider, for instance, the evolving role of developers. With AI agents capable of handling routine coding, developers can focus on bigger-picture tasks like system design and future planning.

According to Salesforce’s latest State of IT survey of software development leaders‌, more than nine in 10 developers are excited about AI’s impact on their careers, and an overwhelming 96% expect it to change the developer experience for the better. More than four in five believe AI agents will become as essential to app development as traditional software tools, the survey found.

In addition to technical abilities, cultivating human and business skills is vital for fostering a trusted environment where teams feel comfortable experimenting with AI. And, as every employee increasingly manages individual or even teams of agents, developing basic managerial skills across the workforce will become increasingly important.

Identifying the skills is just the first step. To succeed in the agentic AI era, businesses need to develop a comprehensive strategy that incorporates these skills into their workforce plan. This includes setting clear, measurable goals and actively tracking progress.

Managers need to provide active guidance and support to employees throughout this transformation, ensuring the workforce remains relevant and engaged.

Adopting trusted AI across the ecosystem

As the capabilities of agents grow, so too does the responsibility to manage ‌associated risks. It’s imperative to ensure these systems are fair and prevent stereotypes or alienation. The very qualities that make AI transformative can also lead to biases and erode trust if not managed.

To fully harness the potential of agentic AI, businesses must prioritize trust and safety at every stage of development and deployment. This means implementing strong security measures and adhering to ethical AI practices to safeguard data and ensure responsible use.

Guardrails for AI agents can be established using natural language topics and instructions specifying when an agent should escalate or transfer a task to a human. Concerns around data privacy and potential biases must be proactively addressed through strong data protection protocols and transparent communication.

Equally important are tools that foster transparency and empower users to make informed decisions regarding task delegation to AI. Employees need a clear understanding of the capabilities and limitations of the AI agents they collaborate with, alongside having control over the tasks being automated.

A key feature of Agentforce is its capacity for autonomous operation within specifically defined guardrails. This means that while ‌AI agents can operate independently, making decisions and taking actions, they do so within boundaries established by human teams, ensuring alignment with business objectives and policies. The Einstein Trust Layer enables Agentforce to use any LLM safely by ensuring that no Salesforce data is viewed or retained by third-party model providers.

The power of reskilling and trust to drive innovation

The transition to an AI-powered future will bring challenges, particularly ensuring employees have access to the right infrastructure, high-quality data, and relevant skills.

However, by investing in reskilling and comprehensive training programs, organizations can empower teams to work effectively alongside AI agents, adapt to the evolving nature of work, and ultimately drive innovation in this age of digital labor.

Building a robust infrastructure that prioritizes trust and safety, and fosters transparency, will also be instrumental in mitigating disruptions and unlocking new opportunities for growth.

Ultimately, investing in both AI agents and human employees, and actively fostering their collaboration in a trusted way, will enable businesses to operate at scale and realize their full potential in the agentic AI era.

Linda Saunders is the Country Manager and Senior Director of Solution Engineering for Africa at Salesforce

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Africa’s Pastoralists Hold the Key to Sustainable Livestock and Environmental Balance

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Daouda Ngom

By Daouda Ngom

Across Africa, pastoralists and livestock keepers sustain herding systems which are closely bound up with our landscapes and crucial to nationwide food security, economic growth, and ecological balance. In my country, Senegal, almost 70 percent of our land is used to graze livestock.

And yet, I hear it often argued that – if we want a sustainable future – we must choose between hooves and habitats because livestock is an “environmental liability”.

But this point of view is misunderstood. Across Africa, innovative approaches and technologies are being piloted to allow livestock and a healthy environment to coexist. What we need now is more investment and collaboration to scale these breakthroughs.

Despite being home to more than 85 per cent of the world’s pastoralists and livestock keepers, sub-Saharan Africa produces just 2.8 percent of global meat and milk. As a result, one in five Africans do not have adequate access to nutritious foods, including animal source foods. Fixing this can be simple: a single egg, a cup of milk, or a small piece of meat can make all the difference to combatting malnutrition.

Meanwhile, populations are growing and urbanising faster here than anywhere else in the world. Demand for meat and dairy products is forecast to rise 300 per cent by 2050.

Thankfully, evidence is already out there which proves that we don’t need to sacrifice a healthy environment to meet this rising demand.

Pastoralists in Senegal, for example, move their animals strategically to mimic natural grazing patterns, considering rainfall to prevent overgrazing. This not only improves biodiversity and soil quality, but also reduces dry vegetation and the growing threat of wildfires. To support, the Senegalese government has been providing our pastoralists with detailed weather data and forecasts to help them optimise grazing and manage their livestock more efficiently.

Working with communities in this way has been shown to reduce conflicts for land and water resources and restore landscapes.

Elsewhere in Africa, animal health interventions are demonstrating how better, not necessarily fewer, livestock is the answer to sustainability in the sector. East Coast fever vaccination programmes have reduced calf mortality up to 95 per cent in some countries. More than 400,000 cattle have been saved in the past 25 years, reducing emissions up to 40 per cent.

Moreover, new thermotolerant vaccines for the highly contagious viral disease peste des petits ruminants (PPR) – as demonstrated already in Mali – offer a promising way to curb the $147 million in annual losses of sheep and goat keepers across Africa. Boosting productivity among these climate-resilient animals will be essential for nourishing Africa’s rapidly growing population as climate change intensifies.

However, despite these successes, an important challenge remains. I have seen firsthand that many pastoralists, smallholders and subsistence farmers lack the knowledge and resources needed to access and implement these innovations. These groups account for the majority of Africa’s livestock keepers and must be reached for these innovations to realise their benefits at scale.

Two things are needed to bridge this gap. First, greater collaboration between policymakers, researchers, farmers and businesses can help us to better understand the challenges that livestock farmers face and help them to produce more, without compromising our environment.

For example, collaborative initiatives like the Livestock and Climate Solutions Hub launched by the International Livestock Research Institute are a way of showcasing practical ways for farmers to reduce their herds’ impact on the environment.

The second element is investment. For decades, despite the clear potential of high returns on investment, the livestock sector has suffered from a vast investment gap, receiving as little as 0.25 per cent of overall overseas development assistance as of 2017. It must be made financially viable for livestock keepers to invest in technologies and approaches that raise productivity sustainably, or else this mission will not even get off the ground.

The upcoming World Bank Spring Meetings – where funding for development initiatives will be determined – presents a timely opportunity to kickstart this paradigm shift so that livestock is recognised within green financing frameworks.

African countries, in turn, must do their part by incorporating livestock into their national economic development plans and their climate action plans. This will help encourage funding streams from global investors and climate financing mechanisms, ultimately catalysing a multiplier effect of billions in livestock sustainability investment.

The solutions are within reach. What is needed now is the will to act decisively and unlock the continent’s unparalleled natural resource potential to build a future where prosperity and sustainability go hand in hand.

Daouda Ngom is the Minister of Environment and Ecological Transition for Senegal

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Na 2027 We Go Chop?

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2027 elections Nigeria

By Tony Ogunlowo

All the talk in the political arena, right now, is about the elections in 2027, two years away: how Tinubu is going to win a second term in office or how a coalition fronting Peter Obi or Atiku is going to unseat him.

The year 2027 is still a good two years away and what the President was [supposedly] elected to do in his first term he hasn’t even scratched the surface of it apart from indulging in the usual blame-game on his predecessor, complaining about lack of funds and presiding over party-in fighting. Just like Nero played the fiddle while Rome burned he still manages to go on long foreign holidays oblivious to what is going on in the country.

Politicians in Nigeria seem to forget, very quickly, why they were voted into office in the first place: they are there to serve the needs of the people, not to enrich themselves, legally or illegally, not to make a name for themselves and certainly not to ignore the needs – and security – of the people who voted them into power.

The average politician is of “…anywhere belle face…”, which is to say for me, me and myself: no morals, no principles and no integrity. They jump ship quite often and ‘if ‘lagbaja’ is paying then I’m joining his party’ which will explain the mass exodus of governors, senators and other politicians decamping to the ruling APC party, risking the nation fast becoming a one-party state.

As we’ve seen from history one-party states don’t work: it only promotes corruption, inefficiency and cronyism. The old USSR collapsed for the simple reason the party fat cats were more concerned about maintaining their bourgeoisie lifestyles than looking after their people: they forgot what they were there for. The same is happening in Nigeria now.

How much does a ‘congo’ of rice or garri cost? Or a tray of eggs? How much does it cost to fill up your car tank, if you can? Or how much is your electricity bill, even though you didn’t get any power? And what about security? What’s to say you won’t be robbed, kidnapped or killed tomorrow when you are out and about? This and a multitude of other problems is what is happening on the streets of Nigeria on a daily basis. Of course, the high and mighty and politicians live in their high walled private estates with fresh food flown in from abroad weekly, armed guards to watch over them and totally oblivious to what’s going on around them.

There has been no improvement on the situation and things are only getting worse. Sadly, the only thing on your average politician’s mind is how he/she is going to get re/elected in 2027 by crook or by hook and they got a slew of PR experts and marketing gurus to come up with new campaign slogans and a basket-full of promises they’ll never fulfil. In a sane climate if a politician is doing the job he was elected to do to the people’s satisfaction, in the first place, he wouldn’t have to worry about re-election: the people would vote him in willingly.

When you’re employed by a company, for instance, you’ll be subject to weekly, monthly or quarterly assessments by your immediate superior. You are expected to hit certain targets and if your performance falls below what is expected of you you’ll be fired! Why can’t the same rule apply to our politicians? If you don’t do what we expect from you, you are out at the next election. Performance is the key word here and this is how it should be. But come the next election and the starving, belittled, abused, unemployed, sick and endangered people will still vote for the incumbent President despite the fact he’s done nothing proactively to turn things around in his first term, as his predecessor did nothing and as his predecessor did nothing…should I continue to go backwards in time? People seem to have a very short memory until the hardship kicks in.

The Chinese say “..a journey of a thousand miles begins with a single step..”, Nigeria’s problems, as gargantuan as they are, can only end when politicians put their selfish interests aside and make a conscious effort to start changing things, a step at a time. Start with tackling the high cost of living. Remember a hungry man is an angry man. Try by making the basic things in life such as food, fuel and electricity affordable: empty promises don’t fill a hungry man’s stomach it only fuels dissent.

And the people have themselves to blame too, why vote in a person who’s going to do nothing for four years and vote him in again?

Itsbeggar’s belief.

So why all the politicians are fretting about themselves, stabbing each other in the back in an attempt to get re-elected, I simply ask ‘na 2027 we go chop?’(-if only it were possible!). Very soon the slogan ‘ebi pa wa o’(we are hungry) will become the new national anthem hopefully forcing politicians to forget their obsession with the 2027 elections and do something….perhaps!

You can follow Tony Ogunlowo on Twitter: @Archangel641 or visit http://www.archangel641.blogspot.co.uk

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