Chile Copper Mining Power Demand to Surge by 2034

Chile Copper

Rising Energy Needs Driven by Processing Shifts

Chile’s copper mining sector will face a sharp rise in power demand over the next decade. According to Cochilco, the state copper commission, the industry will require 32.5TWh of electricity in 2034, up 21% from 26.9TWh in 2024. In contrast, copper production will only expand by 5.6% to reach 5.7mn tonnes in the same period. The mismatch highlights the growing energy intensity of mining operations as ore grades decline.

A higher proportion of copper concentrate production and the increased use of desalinated seawater will drive demand. Cochilco estimates copper concentration will consume 18.7TWh in 2034, or 58% of the sector’s total power. Meanwhile, desalination and pumping water to arid northern mines will account for 5.4TWh, representing 17% of consumption.

Transition to Renewables Amid Rising Costs

Chile’s copper industry has already shifted much of its energy base toward renewables. By 2024, renewables represented 74% of the sector’s electricity use, with contracts steadily renegotiated away from fossil fuels. Cochilco forecasts this share will rise to 78% by 2026. Despite this progress, the overall growth in electricity demand underscores potential cost pressures and supply security challenges for producers.

Copper mining already accounts for one-third of Chile’s total power consumption, and the anticipated rise may stress the country’s grid capacity. Therefore, balancing sustainable energy supply with rising industrial needs will be central to maintaining Chile’s global copper dominance.

The Metalnomist Commentary

Chile’s copper sector is entering an era where energy demand grows faster than metal output. The transition to cleaner power sources is vital, but rising electricity costs and desalination needs will weigh on margins. Global buyers of copper should expect long-term pricing influenced not only by supply-demand balances but also by the escalating energy footprint of mining operations.