Why Big Energy Companies Don’t Offer Dynamic Tariffs (And Why That’s Good News for You)

It is a fair question: if dynamic tariffs are genuinely better for a significant portion of energy consumers, why don't the major suppliers offer them? The answer is not technical. It is structural — and understanding it explains exactly why smaller, faster-moving companies exist in this space.

The Economics of Mass-Market Products

Large energy retailers are built for volume. Their entire commercial model — pricing teams, hedging desks, customer service infrastructure, billing systems, regulatory compliance — is optimised to serve millions of customers with the same product. Complexity is the enemy of margin at scale.

A dynamic tariff requires more: more sophisticated billing, more customer education, more support when customers panic at a price spike, more regulatory navigation as tariff structures vary by country and region. For an organisation serving five million customers, these costs need to be justified by proportionate revenue. For a niche product with a smaller addressable market today, the math rarely works.

Incumbent Risk Aversion

There is also a cannibalisation problem. If a large supplier introduces a dynamic tariff that genuinely saves high-consuming customers significant money, it risks eroding margin on its most profitable customer segment. The incentive to protect existing revenue often outweighs the incentive to innovate at the margins.

This is not a conspiracy — it is rational corporate behaviour. Incumbents are structured to defend and optimise what they have. Disruption almost always comes from outside.

Regulatory Complexity

Dynamic tariff design intersects with metering infrastructure, network tariff regulation, consumer protection rules, and — in Belgium specifically — the complex interplay between federal and regional energy governance. For large suppliers with extensive regulatory relationships, moving cautiously on anything that could attract regulator scrutiny is a safe default.

Smaller, more nimble operators are better positioned to engage directly with regulators, test products in defined markets, and iterate quickly when rules change. The regulatory complexity that creates friction for incumbents creates opportunity for specialists.

Why This Is Good News

The gap between what large energy companies offer and what sophisticated consumers actually need is the commercial space that companies like 10s Energy are designed to fill. We are not competing with the majors on their terms — we are building for the customers they have structurally decided not to serve properly.

Historically, this is how most meaningful innovation in consumer markets happens. Large players build for the median. Everyone else builds for the edges — and over time, the edges become the mainstream.

The energy sector is at the beginning of that transition. Dynamic pricing is not a niche curiosity. It is a structural component of a grid with high renewable penetration, flexible demand, and sophisticated consumers. The question is not whether it will become mainstream. It is who will be best positioned when it does.

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CREG-compliant · reference consumption 3,500 kWh/yr · Belgium 2025–2026
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Since January 2023, part of your grid cost is based on your peak 15-minute draw each month — not just total consumption. The higher your simultaneous load, the higher your capacity tariff.

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Estimated annual saving vs fixed tariff with 10s Smart
Not included in any figure above

Neither the standard dynamic nor the 10s Smart costs include the supplier's commercial margin. The fixed market reference already embeds a typical margin — the dynamic figures do not.

Belgian dynamic tariff providers typically charge €0.015–0.025/kWh above spot plus an annual fee of approximately €50–80/yr (Luminus: €0.021/kWh + €75/yr; Engie: spot × coefficient + fixed constant).

Indicative margin add-on
at your consumption level
Applies to
Standard dynamic & 10s Smart
same for both options
10s Smart — appliance breakdown
Per-appliance cost on real-time Elia pricing
Capacity tariff saving with 10s: Smart shifting reduces your average monthly peak by ~35%, saving /yr on the capacity tariff alone.

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