Biogas Alsace wine

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A biogas power plant in the Alsace vineyard?

With 30 000 40 000 to tons of marc and wine effluents, the vineyard could consider building a biogas power plant. But viticulture she took the measure of the issues and energy challenges?

In June 2004, one could learn in Viti-Alsace and the agricultural and wine Is that oil would be expensive. Then we resume data Jean Laherrère, a geophysicist, we were invited with the help of Crédit Mutuel to the chamber of Agriculture of the Lower Rhine. At the time, oil prices had not yet reached 50 dollars. Since then, things have changed, the economic situation of vineyards in the world was tense, there is even talk tear in Australia, which aspired to be the largest producer in 2015. In Alsace, the vineyards had to make sacrifices on yields and the selling price of bottled and bulk wine. The profit margin was considerably deflated, especially as parallel loads increase. Today we must think about reducing production costs.

It is in the 2000 years, while viticulture could still afford to invest, the question of energy costs should have been taken into account. It appears today that this issue is still not included as a political priority in the vineyard. Some pioneering winemakers are worried however. Some run on vegetable oil - Jean-Marie and Jean-Paul Zusslin to Orchwihr - produce electricity by photovoltaic panels and biogas - André Durrmann Andlau - insulate them against the cold chai and especially against the hot with cellulose wadding - Benoît Frey Bleinschwiller-, and develop simplified cultivation techniques practices alleged consume less fuel - Hausherr Hubert Eguisheim and Patrick Meyer in Nothalten. Some finally exploit the branches into a combustible material - Xavier Leon Muller in Marlenheim, Peter Beinert in Bourgheim, Vincent Spannagel in Katzenthal - to name a few. It remains to develop marc energy at a time when the European Union is considering eliminate aid for distillation. grape marc could also be a formidable energy source into electrical cogeneration for the vineyard.

The oil is expensive, but electricity will also be expensive. This is all the winemakers electricity needs will go ascending to cool the cellars and thermoregulate fermentations sine qua non of the aromatic quality of the wines. And it's not the dog days of summer will deny global warming. At the harvest date, it may still rampant.

France has backed the "almost everything nuclear" Referring to future generations the cost of reprocessing and decommissioning of obsolete reactors and especially distorting the profitability figures of the production of electricity. While a nuclear power plant out of use remains a burden to society, a biogas power plant or a wind turbine used are no longer. A recent article in the newspaper "The world" has addressed this issue. In Britain, a country where nuclear power accounts for only 15 30% to the cost of dismantling and reprocessing is estimated at more than 100 billion, the paper said.

In France, where nuclear power accounts for over 70% of production, how to explain that one evokes only a few tens of billions of euros of cost in terms of the dismantling of obsolete reactors and the reprocessing of this waste , money that otherwise would have been provisioned for decades, that denounces the Courts of Auditors about the financial escapades of the main french electricity operator in South America.
The question is not so much that the nuclear conditions including financial transparency.

And many people, such as agriculture and viticulture are wondering what we should have done and we have not done as regards the construction of biogas power plants, the reason they would less cost-effective than nuclear power. Spreading costs over 300 years, as is envisaged in political Mecca, does not convince "électrodépendantes" companies threaten to relocate. If an aluminum factory or brick can relocate, viticulture can only suffer, unless it decides to produce its own electricity. What would be best, but if the conditions for free access to the production of electricity were met and whether the preservation of private interests was not orchestrated.
A brief rough calculation estimated 40 000 tonnes of marc and effluent produced by the 15 000 hectares of vines, which would 20 million methane m3 or 30 million kWh / year, equivalent to half the potential production of the sewage treatment plant in Alsace, twice the potential of pig farms representing 20% of the potential of cattle farms.

Valued electricity, marks the vineyard could represent a turnover of € 3 M (million) if the electricity feed-in tariff was 10 cents. Recall that goes to 15 17 € cents / kWh in Baden-Württemberg, a country where almost 500 biogas plants are in operation. If electricity was sold in Germany, the marks so would yield more than € 4 million. The same amount of pomace, in 3% potential alcohol, valued alcohol distillery represents 2,8 M € of turnover if all were marketed to ONIVINS, taking account of European aid (€ 187 / hl) and € 1,2 million in revenue in the alcohol market (84 € / hl).

The conversion into electricity wine effluent would be even more beautiful industrial project for the vineyard he could help relieve the treatment plants with sludge could also be fermented. Note that many breeders want to enjoy the necessities of upgrading their effluent collection facilities to construct biogas plants. They expect that the state made promises about the electricity feed-in tariff and complies with European directives.
Meanwhile, methane, 21 times greater impact on the greenhouse effect that CO2 continues to escape from the manure pits. Similarly, the vineyard and its industrial distillery, to also think about upgrading their facilities could use this opportunity to build a biogas power plant.

David Lefebvre


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