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California’s policies on the decarbonisation of buildings can become a model of what works in a thriving economy and what measures should be adopted more broadly in the US and beyond
As the world’s fifth largest economy and a pioneer of environmental laws and policy, all eyes are on California as it turns its attention to freeing its buildings of emissions. Ensuring new houses are equipped with solar panels and that they use no more renewable energy than they consume over the course of the year are top of the list, but existing houses and commercial buildings are also in line for an overhaul as part of the state’s bid to be carbon neutral by 2045
What’s happening: Rooftop solar photovoltaics have been made mandatory in California from 2020 for most new-build single-family homes and multi-unit residential buildings up to three storeys tall
The challenge: Decarbonising buildings is a vital part of the energy transition. Globally they generate nearly 40% of annual greenhouse gas emissions. America’s stock is responsible for a significant volume of these emissions with US buildings likely on average to use twice the energy per square foot (0.09 m2) as buildings in Europe
Affordability: The new measures should help California’s new buildings achieve close to net zero energy use. They will add about $40 a month to an average mortgage payment, but immediately save consumers $80 on monthly heating, cooling and lighting
Key quote: “The world looks to — and expects — California to lead the way.” ...
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Using waste heat from large data centres to heat homes and offices may seem like a no-brainer, but making a business case for getting heat from out-of-town data centres to urban areas at a correct temperature is complicated and costly
Qarnot, a small company based outside Paris, France, is developing computing products that generate heat close to the end user
The influence of younger generations on the boards of well known brands such as packaging company Tetra Pak is ensuring that climate action and the energy transition are at the heart of business strategies, says Jo Sullivan, founder and CEO of Conscience Consulting, a Brussels-based boutique sustainability communication agency
Geothermal heating has plenty of potential as a long-term solution to decarbonise heating and cooling systems
Direct tariffs should be promoted and financed by large-scale donors to accelerate the adoption of renewables in developing countries, argue experts from Dalberg, a global advisory firm. This would encourage the release of extra capital by guaranteeing a market and an energy price for clean energy sources
