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Austin Kay, Swansea UniversityAs the world races to meet net-zero targets, emissions from all industrial sectors must be reduced more urgently than ever. Agriculture is an important area of focus as it contributes up to 22% of global greenhouse gas emissions.
One approach to decarbonising agriculture involves integrating solar panels – or photovoltaics (PVs) – into fields of crops, greenhouses and livestock areas. Often known as agrivoltaics, this can help farmers reduce their carbon footprint while continuing to produce food.
Agrivoltaics can also mitigate one of the main criticisms often made of solar power – that solar farms “waste” vast tracts of agricultural land that could otherwise be used for food production. In reality, solar farms currently occupy only 0.15% of the UK’s total land – not much compared to the 70% of land devoted to agriculture.
The simplest example of an agrivoltaic system would be conventional, crystalline silicon PVs (the market-leading type of solar panels), installed in fields alongside livestock. This method of farm diversification has become increasingly popular in recent years for three main reasons.
First, it enhances biodiversity as it means the fields are not being used for just one crop (monoculture), undergoing regular crop rotation, or being harvested...