The Energy Crisis in Gran Canaria
While millions of tourists bask in Gran Canaria’s favorable climate, the island’s energy infrastructure teeters on the brink of failure. The local electrical system operates in isolation from the mainland, with dangerously low safety margins, leading to what technicians dub “energy zero”—the risk of total blackout.
Issues Highlighted by Recent Blackouts
The looming threat of blackouts is not just hypothetical. Nearby La Gomera recently experienced a blackout resulting from the destabilization of the El Palmar thermal power plant. Residents vividly recall the catastrophic 2023 incident when they were left in the dark for 37 hours. With peak energy demands reaching nearly 550 megawatts (MW) and a firm power deficit estimated between 120 and 140 MW, a controversial solution has emerged: the introduction of floating nuclear reactors at the Port of La Luz.
The Urgency of a Reliable Energy Source
Gran Canaria’s current energy predicament is critical. Aging thermal power plants, reliant on fossil fuels, cannot adequately meet the island’s needs. In response, the Canary Islands Government has decided on a stopgap measure: hiring a 125 MW powership that will dock in Las Palmas, burning fossil fuels to fill the gap. Critics argue that this solution merely exacerbates environmental pollution and dependence on imported fuels, as highlighted in a study from the Peter Huber Center at the University of the Hespérides.
An Innovative Alternative: Floating Nuclear Reactors
The study advocates for a more sustainable option: floating nuclear reactors. These technologies are not experimental but rather an evolution of proven light water reactors historically used in military vessels and icebreakers. With their potential to provide stable, carbon-free energy, floating nuclear reactors could significantly mitigate Gran Canaria’s energy crisis.
Challenges with Renewables
Despite the abundant sun and wind in the Canary Islands, the contribution of renewables to the energy mix has stagnated at around 20% for four years. The inherent instability of renewable energy means that without a reliable, immediate power source, additional renewable installations could destabilize the grid. Existing projects like the Salto de Chira reversible hydroelectric plant aim to store excess renewable energy, but experts assert that a constant CO2-free power source is necessary to support grid stability and future renewable projects.
Water-Energy Nexus
Beyond just electricity, the proposal has significant implications for water security in Gran Canaria. Over 70% of the island’s potable water is desalinated, consuming a substantial portion of the energy produced—including 10% to 12% of the total electricity generated. A floating nuclear reactor could not only ensure stable energy production but also alleviate water scarcity issues.
The Russian Example: Akademik Lomonosov
The concept of floating nuclear reactors isn’t merely theoretical. The Akademik Lomonosov serves as a functional model, operating since 2020 in Pevek, Russia. With its two KLT-40S reactors generating 70 MW, it has demonstrated successful energy production in extreme conditions. Unlike fossil fuel powerships, which require frequent docking for fuel, a floating reactor needs refueling only every three to four years, insulating the island from the volatility of oil prices.
Navigating Political and Social Landscapes
While the technology holds promise, its implementation faces societal hurdles. Environmental groups, such as Greenpeace, raise concerns about safety, dubbing these floating reactors “Chernobyl on ice.” Despite the claims of safety through robust design, potential risks such as tsunamis or cyber-attacks persist.
A Fork in the Road for Gran Canaria
The ongoing debate about floating nuclear reactors signifies a crucial decision point for Gran Canaria. The immediate solution—bringing a fossil fuel-based powership—may address current needs but jeopardizes future environmental sustainability. Experts at the University of the Hespérides challenge local authorities to consider a climate-friendly alternative that guarantees long-term water and energy security absent from fossil fuels.