Glass Shortage in China Harms Solar Energy Industry
The shortage of glass for solar panel production, which is already harming solar panel production in China, is expected to persist until the first half of this year. Driven by the increasing preference for bifacial modules – which generate energy from both sides of the panel – and larger panels, demand is outpacing production capacity additions, they say. An installation rush in the last quarter of the year worsened the deficit.
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“In the short term, we can’t do anything. We just accept the high price of solar glass … Now the shortage has eased, but that’s because module manufacturers adjusted their capacities, delayed sales, and reduced revenues.”
China is the world’s largest manufacturer of solar energy products, accounting for nearly 80% of the world’s solar panel production capacity in 2019.
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Brazilian scientists are simultaneously advancing two research projects on clean hydrogen and driving solutions that could transform the energy matrix, enhance industrial competitiveness, and accelerate large-scale emission reduction targets.
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Advancement in renewable energy: A R$ 150 million project launched by Petrobras and Finep aims to create state-of-the-art electrolyzers for green hydrogen, strengthening national research and preparing Brazil to compete in a billion-dollar energy market.
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Illiterate or semi-literate grandmothers were trained to repair solar systems, open rural workshops, and light up homes that still depended on kerosene.
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The world has bet on green hydrogen as the fuel of the future, but now faces the side effect: producing 1 kilogram requires about 9 liters of ultrapure water, and the largest projects on the planet are precisely in the driest regions of the Earth, where water is already scarce for people.
Bifacial Panels
The demand for glass in China has also increased in the solar energy industry due to the growing prominence of bifacial panels, which are covered on both the top and bottom with glass, allowing for a slight increase in energy generation from sunlight reflected off the ground.
These solar panels are expected to represent half of the market in 2022, compared to about 14% last year, according to analysts from Sunwah Kingsway of China.
Solar glass manufacturers in China have surged this year, with Xinyi Solar Holdings Ltd. more than doubling and Flat Glass Group Co. nearly quadrupling in market value in Hong Kong. Stocks plummeted on Wednesday amid speculation that capacity controls could be lifted and a Democratic victory in the U.S. elections did not materialize.

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