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

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

As the UK grapples with rising energy prices, a growing number of citizens are questioning the financial viability of renewable energy. Gavin Tait, a 69-year-old retiree from Glasgow, is among them. He invested in solar panels, a home battery, and a heat pump when he received a pension lump sum years ago, believing it would be a practical way to save money and reduce carbon emissions. “It seemed like a logical choice—saving money while helping the environment, right?” he recalls. But recent winters have tested this assumption.

Now, with electricity bills soaring, Gavin and his wife have reverted to their gas boiler. The shift came after they realized the cost gap between gas and electricity. While gas provides nearly one unit of heat per unit of energy, their heat pump generates three or four units of warmth for every unit of power consumed. However, at 27p per kilowatt-hour, electricity is now four times more expensive than gas, which costs less than 6p. “The math is straightforward,” says Gavin. “It’s not economically sensible anymore.”

“I noticed my electricity costs had spiked dramatically,” he says. “It’s simple—switching to gas is cheaper, even if it’s not as clean.”

A recent survey of 1,000 heat pump owners by Censuswide for Ecotricity revealed that two-thirds reported higher heating expenses after adopting the technology. Critics argue that this reflects a broader issue: government policies may be misaligned. While heating and transport contribute over 40% of the UK’s emissions, they claim progress in replacing gas boilers and petrol cars is falling short of targets. Ministers, they say, are overly focused on decarbonizing electricity generation—a sector responsible for just 10% of total emissions—but this drive is inflating costs for households.

Offshore wind, a costly renewable resource, has become a focal point of this debate. Solar power, once seen as a promising alternative, faces limitations in the UK due to frequent cloud cover—particularly during winter, when heating demand peaks. Sir Dieter Helm, an Oxford University professor of economic policy, adds that the true cost of renewables extends beyond generation. “It all depends on what you choose to measure,” he notes. “Focusing solely on electricity production overlooks the system’s broader expenses.”

“The cost of the system as a whole is what matters,” Helm explains. “Electricity must be available constantly, not just when the wind or sun is active.”

To maintain reliability, the grid now requires significantly more capacity. Previously, the UK’s energy needs were met with around 60GW from coal, gas, and nuclear plants. But with the push for renewables, this has risen to approximately 120GW. Expansion projects, such as new pylons and power lines, are increasing network charges. Additionally, balancing costs—like payments to wind farms to curtail excess output—add to the financial burden. A subsidy scheme once accounted for roughly 10% of average household bills, further highlighting the economic impact.

Yet the government maintains that prioritizing renewable electricity will deliver long-term benefits. It argues that reducing reliance on imported gas will enhance energy security, lower emissions, and eventually cut bills. Are these claims valid, or is the focus on electricity generation masking the challenges in heating and transport? As oil and gas prices climb due to Middle Eastern tensions, the debate over which targets to prioritize has intensified.