Each winter we turn our vines into renewable energy at Yealands Estate. After pruning the vines, baling them and letting them dry, we burn them in two specially made burners in our winery to heat water.
Each bale weighs around 200kg and when burned provides the equivalent heat of approximately 60Kg of LPG. At full capacity our burners can produce 500kW of energy, enough to keep the average Kiwi household going for three weeks!
We're the only New Zealand winery to use such burners as an energy source. Approximately 10% of all our grapevine prunings are baled and then seasoned for up to 6 months, to ensure they burn cleanly. This process eliminates over 180 tonnes of CO2 per year. See more here.