The Paradox of Progress

Why Cryptocurrency and AI Keep Energy Demand High Despite the Decline of Heavy Industry

In recent decades, many of the world’s older, heavy-industries – steelmaking, coal mining, large-scale manufacturing – have been gradually declining (in many advanced economies) or becoming more energy-efficient. It might therefore seem logical to expect global energy consumption to flatten or decline in parallel. Yet in fact, two very modern sectors – cryptocurrency mining and artificial-intelligence infrastructure – are behaving rather differently, pushing up electricity demand in new ways and raising fresh challenges for energy-savings advocates.

In this post we’ll unpack how and why that is happening, how it intersects with the quest for more energy-efficient buildings and systems (like energy-saving doors!), and what business and policy signals it throws out for those working in the energy-efficiency consultancy space.

The decline of traditional heavy industry – and why it matters

Let’s start by noting the backdrop. Heavy industry – think blast furnaces, large-scale chemical plants, coal-fired power stations, energy-intensive primary production – has been under structural pressure. Some reasons:

        •       Shift of manufacturing to lower-cost countries; automation and process improvements reducing energy intensity.

        •       Regulatory pressure on emissions, carbon pricing, and incentives to scale-down older plants or make them more efficient.

        •       Economic transitions in many developed economies towards services, digital, and light-manufacturing rather than brute-force large-scale industrial energy-use.

This trend matters for two reasons. First, it means the traditional model of “big industrial user = big energy consumption” is being challenged. Second, it opens up space for other sectors to grow their energy demand in relative terms: if old heavy users shrink, new users elsewhere gain share.

That leads us to our two modern drivers of energy consumption.

Cryptocurrency mining: the electricity-hungry digital frontier

The first major phenomenon is the rapidly growing energy consumption of cryptocurrency networks, especially those using “proof-of-work” consensus methods (e.g., Bitcoin).

Some key figures and dynamics:

        •       Bitcoin’s network is estimated to draw in the order of ~173 terawatt‐hours (TWh) per year in 2025.  

        •       That scale is comparable to the electricity consumption of some mid-sized nations.  

        •       Mining rigs compete to validate blocks, requiring enormous computation power, which translates into electricity demand (and heat to be cooled).

        •       While some portions of the mining-industry have shifted to renewable energy or low-cost power, the absolute electricity demand remains large and growing.  

        •       Even as some sectors scale down, this growing demand from a new digital arena means it doesn’t necessarily translate into overall energy reduction.

        •       The structural problem: mining doesn’t necessarily have the same “productive output” of physical goods, yet it ties up grid capacity, demands cooling, and often occurs where power is cheap (which sometimes means less-clean power).

For our interest at EnergySavingDoors.com, the takeaway is: even sectors outside of “traditional buildings and doors” (which we focus on) are shaping the energy-supply environment. When new high‐electricity users compete for grid capacity, there is potential indirect pressure on electricity pricing, grid investment, and the urgency of building-sector efficiency.

Artificial Intelligence infrastructure: hidden loads behind the cloud

The second major driver is the energy consumption of data centres and AI workloads. As we shift into a world of large-scale generative AI models, cloud servers, massive GPU arrays, the energy story becomes more complex—and bigger.

Some headline observations:

        •       According to the International Energy Agency (IEA), data centres consumed about 415 TWh of electricity in 2024, roughly 1.5 % of global electricity usage.  

        •       The IEA projects that by 2030, data‐centre electricity demand could double to around 945 TWh.  

        •       A large part of the growth is being driven by AI workloads: training big models, running inference, supporting huge GPU racks.  

        •       One analysis estimates that AI systems alone could account for nearly half of data‐centre power by end of year.  

        •       Key energy consumers in data centres include server compute (CPUs/GPUs) and cooling systems. In one estimate, cooling alone accounts for ~38–40 % of the power in a data centre.  

So while it’s easy to imagine “digital = lightweight,” the reality is very different: this infrastructure draws heavily on power, materially impacting overall electricity demand and grid infrastructure planning.

Why these trends matter for building-energy-efficiency and doors

You might ask: “What does all this have to do with energy-saving doors?” Quite a lot, actually. Here’s how the link works:

        1.      Grid supply & capacity constraints

When new sectors (crypto, AI) demand large amounts of power, the grid and electricity market need to respond: more generation, more cooling, more distribution capacity, more resilience. That can raise baseline electricity prices (especially peak pricing) or shift investment to less-efficient or fossil‐fuel backup generation—making energy-efficiency in buildings even more urgent.

        2.      Competitive energy budgeting

As electricity becomes a scarcer or costlier input, building owners will prioritise efficiency measures (e.g., better insulated doors, automated shading, smart HVAC) more strongly. In other words: the opportunity for selling/implementing energy-saving doors becomes larger in a market under pressure.

        3.      Indirect emissions and embodied energy

Even if your building upgrades its doors and windows, if the grid is forced to ramp up fossil-fuel generation to meet new digital loads, the downstream emissions may still rise. Efficiency gains in one area (buildings) can be offset by increases in another (data centres). For a complete energy‐savings strategy, we need to look holistically.

        4.      Technology spill‐over opportunities

The pressure mounting on data centres and crypto miners to adopt more efficient cooling, heat-recapture, and energy management may generate technologies that feed into the building sector. For example, high‐density cooling strategies, waste heat capture, or smart automated systems could benefit commercial buildings and door systems.

        5.      Marketing and stakeholder narrative

As a business focusing on energy-saving doors, you can leverage this broader narrative: “As digital loads soar, buildings must respond; upgrading to high-performance doors is one way to reduce your electricity footprint, even when other sectors are expanding theirs.” It helps position your offering in the context of wider energy-transition challenges.

The paradox: declining physical industry but rising digital energy

Putting the pieces together, it becomes clear there is a paradox in play:

        •       Traditional heavy-industry energy use may be declining or becoming more efficient in some countries.

        •       Yet overall electricity demand is not necessarily falling, because new energy-intensive digital industries (crypto mining, AI-driven data centres) are ramping up.

        •       This means that achieving net reductions in electricity demand (or emissions) will be harder than just switching off older factories or improving industrial efficiency. The “new uses” are so large they can offset those gains.

        •       For the energy-efficiency community, it means that focus cannot only be on old sectors — we must engage with and adapt to the new landscape of digital loads, grid pressures and 24/7 computing infrastructure.

Some caveats and mitigation paths

Of course, the picture isn’t entirely bleak. There are several mitigating factors and potential trajectories worth noting:

        •       Many new data centres and crypto operations are increasing use of renewable power, or locating where low-carbon grid supply is available. For example, some Bitcoin mining now reports ~50 %+ renewables share.  

        •       Efficiency improvements matter: While total demand may rise, the energy per unit of computation (or transaction) can fall. For AI, smarter algorithms, more efficient chips, better cooling all play a role.  

        •       The “digital loads” growth may level off or shift as business models mature, or as consensus systems change (in crypto) or model sizes stabilise (in AI).

        •       Policies and regulation can steer growth: e.g., requiring data centres to meet energy‐efficiency targets, incentivising reuse of waste heat, or taxing energy based on real-time grid impact.

But even with all that, the key message remains: the growth in new digital energy demand is real, it is large, and it adds a new dimension to the energy-efficiency challenge for buildings, infrastructure and society.

How Energy-Saving Doors Can Benefit Manufacturing Plants

Manufacturing businesses are constantly looking for ways to control costs, improve efficiency, and maintain optimal working conditions. Installing energy-saving doors can be a surprisingly effective strategy to achieve these goals. Here’s how:

• Enhance energy efficiency and reduce costs: Manufacturing plants often have large doorways, loading bays, and frequent internal/external traffic. Energy-saving doors help maintain internal temperatures, reducing heat loss in winter and limiting heat gain in summer. Over time, this can significantly lower electricity and heating/cooling bills.

• Protect high-value or energy-intensive areas: Facilities housing energy-heavy equipment, such as server rooms, 3D printing labs, or automated production lines, are particularly sensitive to temperature fluctuations. Energy-efficient doors help stabilise internal conditions, supporting consistent equipment performance and extending the lifespan of machinery.

• Improve thermal management for heat-sensitive operations: Some manufacturing processes generate significant internal heat. Controlling heat loss or infiltration through doors ensures a safer, more stable environment for both machinery and staff, and can reduce the workload on HVAC systems.

• Support compliance and future-proofing: As energy regulations become stricter, manufacturing plants that proactively improve their building envelope may gain advantages. Energy-saving doors can help meet or exceed efficiency standards, potentially qualifying plants for government incentives or reducing exposure to future regulatory costs.

• Mitigate hidden energy drains: Even minor drafts, uncontrolled air exchange, or inefficient door operation can have a cumulative effect on energy consumption. By installing airtight, insulated doors, plants can address these hidden inefficiencies and create a foundation for broader energy management strategies.

  
  

In short, energy-saving doors aren’t just a minor upgrade—they are a strategic investment that can reduce costs, improve environmental performance, and support smoother operations across manufacturing facilities.

While it might have seemed that the slowdown in traditional heavy industry was good news for global energy consumption, the emergence of huge digital energy users – crypto mining and AI/data‐centre infrastructure – means that electricity demand is under new and growing pressure.

For companies in the building-efficiency space, including those specialising in energy-saving doors, this shift is an opportunity. As the grid becomes more stressed and energy more precious, helping buildings reduce demand through smart envelope design becomes ever more vital.

By linking the macro-trends (digital energy growth) to the micro-solution (better doors, better thermal control, tighter building envelopes) you can position your consultancy and product-offering as conversant with the real future of energy-efficiency, not just the past.

In a world where data centres might soon use as much electricity as entire nations, every kilowatt saved in a building matters.