Austrian energy company Energie Steiermark will supply green hydrogen for a pilot project launched by building firm Strabag SE (<a href="https://www.wienerborse.at/en/stock-prime-market/strabag-se-AT000000STR1/" target="_blank">VIE:STR</a>) and construction equipment maker Liebherr to use a hydrogen-powered wheel loader at the Gratkorn quarry in southeastern Austria.