Energy’s Evolution - The Age of Electricity Is Here
From wood to coal, oil to renewables - every energy age has shaped the world we live in. Now begins the Age of Electricity - driven by electrification, enabled by batteries, and supported by lithium, innovation, and a smarter energy mix.
Energy Powers Progress
From firewood to fossil fuels, the way we produce and use energy has shaped every chapter of human history.
The Age of Coal powered steam engines and the Industrial Revolution.
The Age of Oil transformed transportation, trade, and globalization. Each era unlocked new possibilities - and created new challenges.
Today, we stand at the edge of another transformation: the Age of Electricity.
The world’s energy needs are growing and changing, driven by electrification, digitalization, industrial demand, and the global push for lower-carbon energy systems.
Meeting those needs requires more than switching from one energy source to another.
It demands a smarter, more balanced energy mix - one that uses existing infrastructure, scales clean power, strengthens grids, expands battery storage, and builds a cleaner, more resilient energy system.
At the center of that shift are batteries.
And at the center of many of those batteries is lithium - along with the innovation needed to extract it faster, cleaner, and more responsibly.
The Evolution of Energy - A Journey Through the Ages
Before we talk about where we’re going, it helps to understand where we’ve been.
Human progress has always been fueled by the energy we harness - and how we choose to use it. From wood fires to coal furnaces, from oil rigs to solar farms, each era brought new possibilities, challenges, and innovations that shaped the world we live in today.
Explore the defining energy sources of each age - and see how they’ve laid the foundation for what comes next.
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The wood and biomass age (pre-industrial to 1700s)
Before steam engines and power grids, energy came directly from the land and human effort.
In the Wood and Biomass Age, firewood, peat, and animal power were the primary sources of energy. People cooked over open fires, heated homes with stoves, and used water wheels or windmills to grind grain and pump water. Seasonal rhythms and nearby resources shaped how societies lived and worked.
While simple by today’s standards, this age laid the groundwork for organized agriculture, craftsmanship, and early urban development.
It was energy on a human scale - local, renewable, and limited.
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The age of coal (1700s – 1900s)
The discovery and widespread use of coal sparked a revolution, quite literally.
Coal powered the Industrial Revolution, fueling steam engines, factories, trains, and early power plants. It enabled mass production, rapid urbanization, and the rise of modern industry. For the first time, energy could be generated on a large scale and transferred across regions, transforming entire economies.
Coal drove immense progress, but also brought serious environmental and social costs. Mining was dangerous, and air pollution darkened the skies over growing industrial cities in Europe and beyond.
Still, coal laid the foundation for modern energy systems, power grids, and today’s global economy.
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The age of oil (1900s – present)
If coal powered industry, oil powered mobility.
With the invention of the internal combustion engine, oil became the backbone of transportation, fueling cars, trucks, airplanes, and ships. It also gave rise to modern petrochemicals, plastics, and pharmaceuticals, reshaping the global economy and everyday life.
The 20th century was defined by oil, not just as a source of energy, but as a driver of geopolitics, trade, and development. Oil-rich regions gained global influence, and massive infrastructure was built to extract, refine, and distribute it.
Even today, oil remains a critical part of the energy mix. Its impact is undeniable: It has enabled decades of global growth, connectivity, and innovation.
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The age of natural gas and nuclear (mid-1900s – present)
As energy demand continued to rise, the world turned to natural gas and nuclear power for cleaner, more efficient solutions.
Natural gas emerged as a flexible, cleaner-burning fossil fuel widely used for heating, electricity generation, and industrial processes. Its lower emissions and abundance made it a key transitional fuel, especially in power generation and grid balancing. The rise of LNG (liquefied natural gas) and large-scale pipeline networks enabled global trade and the flow of energy across borders.
At the same time, nuclear energy offered a different path - delivering massive amounts of electricity with zero carbon emissions during operation. It promised energy independence and long-term efficiency, but raised concerns around safety, waste management, and high upfront costs.
Both energy sources became central to national energy strategies, helping create more stable and diversified energy systems.
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The renewable age (2000s – present)
With growing awareness of climate change and the environmental impact of fossil fuels, the world has shifted toward renewable energy sources - and quickly.
Solar, wind, hydro, geothermal, and bioenergy emerged as clean, sustainable alternatives capable of reducing greenhouse gas emissions and diversifying national energy portfolios. Thanks to rapid technological advancements, falling costs, and supportive policies, renewables have scaled quickly.
They’ve become a driving force in electricity generation, especially in countries focused on decarbonization. However, their intermittent nature has introduced new challenges, from energy storage to grid stability, and increased demand for critical materials such as lithium, nickel, and rare earth elements.
The Renewable Age marked a turning point - not just in how we power our lives but also in how we think about sustainability, innovation, and the planet’s long-term future.
The Age of Electricity Is Here
Electricity is no longer just one part of the energy system; it’s becoming the platform the modern economy runs on.
Transport is electrifying. Buildings are using more electric heating and cooling. Industry is becoming more power-intensive. Data centers and AI are increasing electricity demand. Renewable energy is adding more clean power to the grid.
The numbers show the shift clearly.
Global electricity demand grew by 4.4% in 2024 and another 3% in 2025. Looking ahead, electricity demand is forecast to grow by an average of 3.6% per year from 2026 to 2030.
That’s not just growth. It’s a structural break. But this shift is not a simple replacement story.
In many parts of the world, the energy transition is also an energy addition. Demand is growing, electricity use is rising, and the system must expand while it decarbonizes.
The Age of Electricity doesn’t mean every old energy source disappears overnight. It means electricity becomes the central platform for a bigger, cleaner, and more flexible energy system.
For the first time in three decades, outside crisis-related disruptions, global electricity demand outpaced economic growth in 2024. Through 2030, electricity consumption is projected to grow at least 2.5 times faster than overall energy demand.
The drivers are everywhere:
- Industry
- Electric vehicles
- Air conditioning
- Heat pumps
- Data centers
- Artificial intelligence
- Battery manufacturing
- Electrified transport
- Digital infrastructure
In 2025, electricity demand grew well over twice as fast as total energy demand. Demand from electric vehicles and data centers grew rapidly, and electric car sales passed 20 million units worldwide - around one-quarter of all new car sales.
This is what the Age of Electricity means.
The world is moving from an energy system built mainly around fuels to one increasingly built around electricity. And that changes what the energy system needs.
It needs more clean generation. It needs stronger grids. It needs more flexibility. It needs more storage. And it needs the critical raw materials required to build the batteries, infrastructure, and technologies behind electrification.
The Age of Electricity is not just about producing more power; it’s about building the system that can store it, move it, manage it, and use it where it creates the most value.
Why Batteries Are Becoming Infrastructure
For decades, batteries were mostly seen as portable power.
They powered phones, laptops, tools, and eventually electric vehicles. But in the Age of Electricity, that view is too narrow.
Batteries are becoming infrastructure.
Battery energy storage systems - also known as BESS - are now part of how modern power systems store energy, balance supply and demand, support grid reliability, and make renewable power more useful.
That matters because electricity works differently from oil, gas, or coal.
Fuels can be stored in tanks, pipelines, terminals, and ships. Electricity has traditionally had to be generated and used in real time. Storage changes that equation.
It gives power systems more flexibility. And flexibility is becoming one of the most important needs in the energy transition.
Solar power peaks during the day. Wind output changes with the weather. Electricity demand rises and falls by the hour. At the same time, EV charging, data centers, heat pumps, cooling, and industrial loads are adding new pressure to the grid.
Batteries help connect those moving parts.
They store excess renewable power when generation is high, then discharge electricity when demand rises, or grid conditions tighten. They can reduce pressure on congested grids, support frequency and voltage stability, manage peak demand, and improve energy resilience.
That’s why battery storage is scaling quickly.
In 2025, battery storage was the fastest-growing power technology, with capacity additions rising by around 40% to almost 110 GW.
This is no longer a niche technology.
Battery storage is becoming part of the electricity system itself.
The stronger the Age of Electricity becomes, the more valuable storage becomes. And the more storage the world builds, the more important lithium becomes.
A Balanced Energy Mix for the Future
As global energy demand keeps rising, the answer isn’t to choose one energy source and discard the rest.
That’s not how energy systems work.
The future will be built through optimization, integration, and decarbonization - not overnight elimination.
Renewables are scaling fast. Solar and wind are becoming major sources of new electricity generation. Nuclear is regaining strategic importance in several markets. Natural gas can still support flexibility and reliability in many power systems. Battery storage is becoming essential for balancing supply and demand. And stronger grids are needed to connect it all.
That’s what a balanced energy mix looks like. Not one source replacing everything else.
A smarter system where different technologies do different jobs.
The Age of Electricity doesn’t mean every old energy source disappears. It means electricity becomes the central platform for a cleaner, more flexible, and more resilient energy system.
But that system still has to be reliable.
It needs power when the sun isn’t shining. It needs flexibility when wind output changes. It needs storage when renewable generation is high. It needs dispatchable capacity when demand rises. It needs grids that can move power from where it’s produced to where it’s needed. And it needs critical raw materials to build the infrastructure behind it.
Solar panels, wind turbines, batteries, EVs, transmission lines, charging networks, and storage systems all require physical materials.
The Age of Electricity is cleaner than the fossil-fuel system it’s replacing.
But it isn’t weightless.
It needs steel, copper, graphite, nickel, rare earths - and lithium.
That means the energy transition is also a materials transition.
That’s also why existing industries have a role to play.
Oil and gas operators already manage complex infrastructure, large water streams, pipelines, land access, and industrial operations. In the right conditions, those assets can support the next energy system - not by replacing renewables, but by helping supply the materials needed to scale electrification.
Produced water is one example.
Instead of treating it only as a waste stream, mineral-rich produced water can become a new source of lithium where the chemistry, infrastructure, and economics make sense.
That’s the kind of bridge the energy transition needs.
Not either-or.
Smarter use of the resources, infrastructure, and innovation already available.
What Does the Future of Energy Look Like?
Watch this short video from CERAWeek 2025, where our CEO, Sune Mathiesen, shares insights on how oil, gas, renewables, and clean technologies must evolve together - and why Lithium Harvest plays a critical role in bridging today’s operations with tomorrow’s energy needs.
The future of energy isn't about choosing between oil and renewables - it's about integrating them into a balanced, more sustainable energy mix.
By extracting lithium from oilfields, we're turning today's infrastructure into tomorrow's solutions - accelerating a more sustainable future.
Why EVs and BESS Drive Lithium Demand
The Age of Electricity is also the age of batteries. And two markets are driving that shift faster than anything else: electric vehicles and battery energy storage systems.
EVs are the most visible driver.
Every electric car needs a battery, and most EV batteries still rely on lithium-ion chemistry. That makes lithium a core material in the electrification of transport.
The scale is already significant.
Electric car sales passed 20 million units worldwide in 2025, reaching around one-quarter of all new car sales. That means EVs are no longer a future concept. They’re already part of the global transport system.
But EVs are only one part of the battery story.
Battery energy storage systems - or BESS - are becoming increasingly important as grids add more solar, wind, and flexible electricity demand. Storage helps make renewable power more useful by shifting electricity from when it’s produced to when it’s needed.
That creates a second major demand driver for lithium.
EV batteries move people and goods.
BESS helps move electricity across time.
Together, they turn lithium into one of the core materials behind electrification.
This is why lithium demand is growing with the energy transition. In 2024, global lithium demand rose by nearly 30%, driven largely by energy applications such as electric vehicles, battery storage, renewables, and grid networks.
And the direction is clear.
As more vehicles become electric, more grids add storage, and more renewable power enters the system, lithium demand becomes less tied to a single market cycle and more tied to the physical buildout of the Age of Electricity.
The world doesn’t just need more batteries; it needs the materials to make them.
Why Electrification Needs More Resilient Mineral Supply
Every energy age has had a physical foundation.
The Age of Coal needed mines, railways, and steam engines. The Age of Oil needed wells, pipelines, refineries, tankers, and filling stations.
The Age of Electricity is no different.
It needs grids, batteries, charging networks, storage systems, power electronics, solar panels, wind turbines, and advanced manufacturing capacity.
And all of that needs materials.
That’s why electrification isn’t just a power story. It’s a supply chain story.
The world needs more lithium, copper, graphite, nickel, rare earths, and other critical raw materials. But it doesn’t just need more volume. It needs supply that’s more resilient, more diversified, and more responsibly produced.
Today, that’s a challenge.
Critical mineral supply chains are still highly concentrated. Mining is concentrated in a small number of countries, and refining is often even more concentrated. That creates risk.
A single disruption - from weather, labor disputes, geopolitics, trade restrictions, permitting delays, or technical failures - can ripple through battery, EV, renewable energy, and grid supply chains.
That matters because electricity security is becoming mineral security.
If the Age of Electricity depends on batteries and grids, then it also depends on the materials behind them. And if those materials are delayed, disrupted, or produced in ways that create environmental and social pressure, electrification becomes harder to scale.
The answer isn’t to replace mining completely. Mining will remain essential.
But the energy system needs more routes to supply.
That includes recycling, better refining capacity, cleaner mining, more regional production, and new recovery pathways from alternative sources such as brines.
For lithium, that matters especially.
The world doesn’t just need lithium somewhere in the ground. It needs battery-grade lithium that can be produced fast enough, responsibly enough, and close enough to demand.
That’s why produced water and geothermal brines are becoming more important.
Where the chemistry, infrastructure, and economics work, brine-based lithium extraction can help turn existing water streams into new sources of critical mineral supply.
It won’t replace every mining method.
But it can add a faster, more local, and potentially lower-impact supply route to support the Age of Electricity.
Energy Transition and Sustainability
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