Why cheap power could matter more than clean power in the push for net zero
The Case for Affordable Energy Over Green Energy in the Race to Net Zero
"Iāve always been quick to embrace new technology," admits Gavin Tait, a 69-year-old resident of Glasgow, speaking with evident satisfaction. Approximately ten years ago, upon receiving a retirement lump sum, he channeled those funds into renewable energy solutions. His home was equipped with rooftop solar panels, a home battery, and a heat pump. "It appeared to be an obvious choice," he remembers. "I would reduce my expenses and benefit the planetāwhat was there to lose?"
Initially, the strategy proved effective. His well-insulated property remained comfortable, and his energy costs dropped. However, the landscape shifted following Russiaās invasion of Ukraine, which triggered a surge in electricity prices. Over the last two winters, the financial reality became starkly different. "My electricity bills skyrocketed," he notes. Consequently, this winter, he and his spouse disconnected the electric system and reverted to their gas boiler, which they had retained as a reserve.
Gavin, who shared his story with BBC Your Voice, understands the mechanics behind the cost disparity. While a traditional gas boiler yields nearly one unit of heat for every unit of energy consumed, a heat pump can generate three to four units of heat per unit of electricity. Yet, because heat pumps rely on the grid, Gavin is now paying approximately 27p per kilowatt-hour, whereas gas costs less than 6p per unitāmore than four times the price. Although he utilizes a smart tariff offering lower overnight rates, this discount window lasts only five hours, leaving him to pay the higher daytime rate for the majority of the time.
Several factors contribute to Gavinās high bills. First, there is the issue of scale. He purchased his battery roughly a decade ago; at 1.5 kWh, it was the most affordable option available then but is now insufficient to store enough power to make a significant impact. Second, usage habits play a role. While Gavin is content with indoor temperatures of 19°C to 20°C, his wife occasionally raises the thermostat to 23°C. Heat pumps must exert considerably more effort than gas boilers to achieve higher temperatures, which drives up both energy consumption and costs. "Itās straightforward," Gavin concludes. "From an economic standpoint, it simply doesnāt add up."
Gavinās situation is far from unique. A survey conducted last summer by Censuswide for Ecotricity, which polled 1,000 heat pump owners, revealed that two-thirds reported their homes were more expensive to heat than prior to installation. For opponents of current government strategies, anecdotes like Gavinās highlight a fundamental flaw. Critics argue that progress in replacing gas boilers and petrol vehicles is falling short of targets because policymakers have misaligned their priorities.
They contend that the government is fixated on decarbonizing electricity generation, which accounts for only about 10% of the UKās total emissions, while neglecting heating and transport, which contribute over 40%. In their view, this fixation is inflating electricity prices, thereby discouraging households from switching to heat pumps or electric vehicles. This debate has gained urgency amid the conflict in the Middle East, which has driven up oil and gas prices and raised concerns about the persistence of high energy costs.
The government maintains that prioritizing renewables will enhance energy security by reducing dependence on imported gas, cut emissions, and, most importantly, lower bills in the long run. Is this approach correct? Or, by focusing on cleaner electricity while lagging in other sectors, is the state pursuing the wrong objectives?
The Hidden Expenses of Green Power
The core argument is that while producing renewable electricity may be inexpensive, the infrastructure required to distribute it is not. When asked for a definitive assessment of renewable costs, Sir Dieter Helm, Professor of Economic Policy at Oxford University, laughs. "It entirely depends on what you decide to measure," he states.
Sir Dieter argues that concentrating solely on generation costs overlooks the broader issue: the total cost of the system. Electricity demand is constant, regardless of whether the wind is blowing or the sun is shining. This necessitates backup generation, additional capacity, and an expanded network. Sir Dieter provides a simplified illustration: the UKās peak electricity demand...
Source: BBC News Generated at: 2026-04-15 23:20:22 UTC






