TÍTULO
FACTORS INFLUENCING PRICES FOR HEAT FROM BIOGAS PLANTS
DOCUMENTO - ARTIGO CIENTÍFICO
AUTORES - CARSTEN HERBES, VERENA HALBHERR, LORENZ BRAUN
RESUMO/ABSTRACT
Heat prices are crucial for the revenues that biogas plants can generate; they can make or break a plant’s business. But little empirical price data exists. To remedy this and to identify factors influencing heat prices received by biogas plants, we surveyed 602 plant operators in Germany, yielding 1035 price points. We found a mean price of 1.91 EuroCt/kW h on the contract level, a mean revenue of 2.1 EuroCt/kW h on the plant level, and a wide variation in prices across utilization paths. Five factors were identified that together explain almost 50% of the price variance observed. The top three all contribute to higher prices: first, that the operator of the plant also operates the heat grid; second, that the heat contract offer full supply security; and third, that the heat be sold for heating buildings. Heat sold for agricultural drying processes commands significantly lower prices. Macroeconomic characteristics of a region do not affect prices; local factors seem to play the decisive role. This leads to wide price variations and the limited influence of any one factor on heat price. Companies and investors are thus advised to enter into pre-negotiations with prospective heat customers so that realistic site-specific numbers for off-heat prices can be used in planning; anything less puts a biogas venture at risk. Policy makers, when setting subsidies for biogas plants, also have to factor in revenues from heat; the results of this study can help them do so.
Profissionais, estudantes e interessados na cadeia do biogás e, atuantes nas diversas áreas, etapas de projetos ou operação na produção de biogás.
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1ARTIGO CIENTÍFICO
FACTORS INFLUENCING PRICES FOR HEAT FROM BIOGAS PLANTS
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