Move over wind farms: why some argue cutting costs is the best way to cut carbon

Wind Farms Take a Back Seat: The Case for Lowering Costs to Reduce Carbon Emissions

Gavin Tait, a 69-year-old retiree from Glasgow, has always embraced emerging technologies. Years ago, he used a pension windfall to invest in renewable energy solutions—solar panels, a home battery, and a heat pump. “It felt like a logical move,” he says, reflecting on his decision. The idea was simple: reduce energy costs while contributing to environmental goals. For a while, it worked. His energy bills dropped, and his energy-efficient home remained warm. But recent winters have changed the equation.

“Electricity prices have skyrocketed,” Tait explains. “Switching back to gas made more sense, even though it’s not as clean.” He points out that gas provides nearly one unit of heat per unit of energy, while his heat pump delivers three or four units. Yet, with electricity now costing 27p per kilowatt-hour compared to gas’s 6p, the math doesn’t add up.

His experience resonates with many. A Censuswide survey of 1,000 heat pump users last summer revealed that two-thirds reported higher heating costs than before. For critics of current policies, these stories highlight a key concern: the government’s focus on electricity generation may be misaligned with broader climate goals. Heating and transport account for over 40% of the UK’s emissions, but progress in replacing gas boilers and petrol vehicles has stalled, they argue.

The Cost of Clean Energy

Opponents claim ministers are fixated on decarbonizing electricity, which represents just 10% of total emissions, while neglecting the more pressing need to tackle heating and transport. This emphasis, they say, inflates electricity prices, making it harder for households to adopt alternatives like heat pumps or electric cars. The situation has grown more acute as Middle Eastern conflicts drive up oil and gas costs, fueling fears of prolonged high energy prices.

The government counters that prioritizing renewables ensures greater energy security. By reducing reliance on imported gas, they argue, emissions drop and bills eventually fall. But is this strategy sustainable? As renewable generation becomes more prevalent, the system’s infrastructure must expand. Sir Dieter Helm, an Oxford University professor of economic policy, offers a clear perspective.

“The cost of renewables depends on what you measure,” Helm says. Focusing solely on generation overlooks the system’s total expenses. Electricity needs constant availability, not just when the sun shines or the wind blows. This demands backup power, extra capacity, and a more extensive grid, all of which increase costs.”

Helm uses the UK’s peak demand as an example. Previously, coal, gas, and nuclear plants provided around 60GW of capacity. Now, with renewables taking center stage, the required capacity has nearly doubled to 120GW. Expanding the grid—constructing new pylons and power lines—adds to network charges, while balancing costs, such as paying wind farms to reduce output during surges, further strain budgets. A subsidy scheme, once covering 10% of household bills, has also contributed to rising expenses.

The Offshore Wind Dilemma

Offshore wind, Britain’s most expensive renewable resource, faces unique challenges. Unlike solar, which has seen cost reductions through mass production, offshore wind remains costly due to the nation’s often cloudy winters. These conditions limit the viability of solar power, making the shift to wind more complex. As demand peaks, the need for backup systems grows, raising questions about whether the government is tackling the right issues to achieve its climate targets.