- Jul 12, 2021 2:38 am GMT
Electricity generation from wind power doesn’t directly create emissions, but the manufacture, construction and end-of-life disposal of wind turbines does. To date, no power technology has achieved carbon neutrality over its life cycle (nuclear comes close but its expensive).
1-POTENTIAL LIFE-CYCLE EMISSIONS OF WIND POWER
At estimated 55 million tonnes of total life cycle carbon emissions is a small fraction of emissions from Thermal power, but its is still far from carbon-neutral
2-THE SOURCES OF EMISSIONS FROM WIND POWER
- 86% of total lifecycle emissions for wind power comes from raw materials extraction and turbine manufacture.
- The remaining 14% comes from transportation, installation, operation and maintenance, and decommissioning and disposal.
- Together, steel & concrete contribute ~ 95% of raw material emissions, making them the key target for achieving reductions.
WHAT'S WIND INDUSTRY DOING ABOUT LIFE-CYCLE EMISSIONS ?
- The top five turbine suppliers in the world have all committed to becoming carbon neutral in their operations.
- Use of Green-Steel (currently no plant is green), renewables and Electric Vehicles could help reduce the carbon-footprint.
WHAT ARE THE CHALLENGES?
- The indirect emissions from raw material extraction and manufacturing of steel and concrete remains a core challenge.
- Decommissioned capacity set to increase six-fold between 2020 and 2030, end-of-life disposal will increasingly be an issue.
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