Post-Nuclear Power Secure, But Urgent Action Needed, Says Axpo Analysis

Switzerland faces a critical energy crossroads, and the clock is ticking. A comprehensive analysis by 50 top experts from the energy giant Axpo delivers a stark ultimatum: the nation can guarantee its electricity supply after the nuclear phase-out, but only if the government acts immediately. This is not a suggestion; it is an operational imperative. The report shatters the illusion that a passive transition will suffice, asserting that security is achievable solely through decisive intervention.

The analysis outlines a fragile stability. While the lights will stay on, the margin for error is non-existent. Axpo identifies four non-negotiable measures that must be implemented regardless of the country's long-term political strategy. Without these pillars, the grid risks instability. The message is clear: the infrastructure of tomorrow requires bold legislative courage today. As Energy Minister Albert Rösti elevates supply security to a primary strategic objective, this report serves as both a roadmap and a warning siren for federal policymakers grappling with a volatile European energy market.

In a move that challenges recent political orthodoxy, Axpo demands an immediate extension of the operating life of Switzerland's existing nuclear fleet. The analysis positions these aging giants not as relics, but as the essential bridge to a renewable future. By keeping these plants online longer than originally planned, Switzerland buys itself the most valuable resource of all: time. This buffer is critical to developing alternative technologies without plunging the grid into chaos.

This recommendation lands amidst a seismic shift in Bern. On March 11, the Senate voted to remove the ban on constructing new nuclear power plants, signaling a dramatic pivot in national sentiment. While the House of Representatives has yet to weigh in, the momentum is undeniable. Axpo's data reinforces this political maneuver, suggesting that prematurely severing the nuclear lifeline would be a strategic error of the highest order. The existing plants provide the baseload stability required to weather the transition, acting as a bulwark against the intermittency of solar and wind.

Switzerland’s energy battle will be won or lost in the winter. Axpo’s analysis exposes a critical vulnerability during the colder months when demand surges and solar output plummets. To combat this, the report calls for a radical restructuring of federal subsidies. The government must stop incentivizing summer surpluses and aggressively prioritize winter electricity production. The era of passive solar expansion is over; the focus must shift to when the grid is most stressed.

Simultaneously, the report urges a massive acceleration in wind energy development. Despite high potential, Swiss wind projects have been bogged down by regulatory inertia. Axpo argues that unlocking this sector is no longer optional—it is vital for winter security. The proposed 'winter electricity bonus' for large installations, announced by the government last autumn, aligns with this urgency. However, the analysis insists that policy must move faster, turning wind turbines from a rare sight into a backbone of the winter energy mix.

Looking beyond the immediate crisis, Axpo presents two distinct scenarios for the long term, both of which rely on a controversial failsafe: gas. The first scenario envisions a 'balanced mix' dominated by hydropower, a massive surge in photovoltaics, and significantly more wind power. However, even this green vision requires gas-fired power plants to act as a flexible complement, firing up when nature fails to deliver.

The second scenario is even more ambitious, proposing the construction of two brand-new nuclear power plants. These reactors would work in synergy with hydro, solar, and wind, creating a robust, diversified grid. Crucially, both scenarios demand that the government create appropriate framework conditions for gas plants immediately. Whether the future is nuclear-heavy or renewable-focused, the need for dispatchable, on-demand power remains a constant reality that policymakers can no longer ignore.

While Axpo’s roadmap is technically sound, it has ignited a firestorm of debate within the industry. Swissolar, the association of solar energy professionals, acknowledges the report's importance but sharply criticizes its assumptions. They argue that Axpo underestimates the sheer dynamism and profitability of the renewable sector. For Swissolar, the solar revolution is moving faster than traditional analysts predict, potentially rendering the need for heavy baseload interventions less acute than stated.

This friction highlights the tension at the heart of Swiss energy policy. As Parliament debates the removal of the nuclear ban and the government pushes to speed up procedures, the clash between established energy giants and the renewable lobby is intensifying. With the House of Representatives set to vote on the nuclear issue, the coming months will define Switzerland’s energy landscape for decades. The consensus is gone; the race for a secure, powered future is now a high-stakes political battleground.