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Yealands' ultimate goal is to generate enough energy to become self-sufficient, and ideally supply any surplus back to the national grid. Our extensive range of energy efficiency initiatives to reduce emissions include renewable energy, fuel reduction, using green SMART technology and environmentally friendly packaging.
RENEWABLE ENERGY ON YEALANDS ESTATE
The sun doesn’t only boost the flavour development in our grapes – it gives us power too. The northern side of the Yealands Estate winery roof in the Awatere Valley is home to New Zealand’s largest solar panel installation. It produces more than half a million kW hours per year – enough to power 86 average New Zealand households! Find our more about how we harness the sun's energy here: https://www.yealandsenergy.co.nz
Vine Pruning Energy
During Winter we collect vine prunings from our Yealands Estate vineyard and bale them to be burned for energy in two specially installed burners in the winery. 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, that’s enough to keep the average Kiwi household going for three weeks! We are 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 greenhouse gas emissions (CO2) per year.
We’re always searching for more sources of renewable energy, so we can ultimately generate enough energy to become totally self-sufficient. As well as using solar power from the rooftop of our winery, we’re also putting the wind to good use. Two traditional wind turbines and a horizontal axis wind turbine on our estate in the Awatere Valley, Marlborough, generate extra power for use in the winery. These turbines produce us approximately 75,000 kWh of energy.
Babydoll Sheep and Kunekune pigs
We have introduced Babydoll sheep and Kunekune pigs to graze our vine rows. But how do we prevent them from eating our juicy grapes? Easy, our Kunekunes and miniature Babydoll sheep can’t reach! This allows us to graze within the vines all year round, not just in the cooler winter months.
This means we don’t need to mow with tractors as often, reducing use of fossil fuels and carbon emissions. Furthermore, we simultaneously benefit from a natural fertiliser.
Hydrogen Generator Units
We have trialled and installed hydrogen generator units on a number of our tractors which has cut fuel consumption by up to 15% and reduces the amount of emissions from them to almost zero.
Diesel emissions from our tractors represent one of our largest carbon emission sources. In what we believe is a New Zealand winery first, we have switched some of our vineyard machinery to using bio-diesel, derived from recycled cooking fat. The conversion to run on bio-fuel will markedly reduce carbon emissions.
The weight of a product can have a huge impact on the amount of resource and energy needed to deliver it to the end customer. Therefore to keep this down we decided to reduce the average glass weight for our bottles. This in-turn has delivered an 11.5% reduction in CO2 respectively, for each of our glass and transport-to-customer emissions.
We have also released the Peter Yealands Eco 750ml range in PET bottles that are 89% lighter than standard glass bottles!
GREEN SMART TECHNOLOGY
The adoption of green SMART technology in the Yealands Estate winery, including heat recovery units, variable speed drives, refrigeration economisers, evaporative condensers, lighting sensor monitors and energy saving monitors, have all helped us become more energy efficient. In addition, all of our tanks are housed within a fully insulated building.
ECO FRIENDLY PACKAGING
Our Peter Yealands Eco range presents our award-winning Peter Yealands wines in 100% recyclable PET bottles. These 750ml plastic bottles have a 54% smaller carbon footprint and are 89% lighter than standard glass bottles.