Very challenging but credible welcome paths via Labour into the future for reducing impact of heating on climate change in the UK

Some extracts from the Labour Party 2019 Manifesto that I myself find particularly of interest:
“Energy use in buildings accounts for 56% of the UK’s total emissions, making it the single most polluting sector. We will develop the recommendations of our ‘30 by 2030’ report to put the UK on track for a net-zero-carbon energy system within the 2030s – and go faster if credible pathways can be found. We will deliver nearly 90% of electricity and 50% of heat from renewable and low-carbon sources by 2030.”
“As part of heat decarbonisation, we will roll out technologies like heat pumps, solar hot water and hydrogen, and invest in district heat networks using waste heat.” (my emphasis)
“We will support energy workers through transition and guarantee them retraining and a new, unionised job on equivalent terms and conditions.”
“We will provide a strategy to safeguard the people, jobs and skills that depend on the offshore oil and gas industry.”