Page 67 - European Energy Innovation - summer 2019 publication
P. 67
Summer 2019 European Energy Innovation 67
BIOGAS
Figure 1. An overlook of the system studied.
incinerated to generate heat and whole spectrum of the electricity perspective, the two biogas scenarios
electricity or composted and used as production in the electricity system, are to be preferred over the business
fertilizer. In the two different biogas ranging from the production with as usual scenario.
scenarios, the organic by-products large CO2-emissions to small, or no,
are used for biogas production and CO2-emissions. Hence, the results Several factors influence the results:
the remaining organic matter as are presented for each of these the current treatment methods of the
fertilizer on farm lands. The biogas is electricity systems. by-products in the different areas, the
used for either generation of heat and biogas potential of the by-products,
electricity (Scenario CHP) or upgraded The results show that from an the amounts of by-products available
and used as vehicle fuel (Scenario economic perspective, in four out of to name a few. The study showed that
Vehicle). five areas, it is most preferable to use there is an unused biogas potential
the organic by-products for biogas of 800 GWh in the studied areas.
The different scenarios were analyzed production and to use the produced Compared to the annual production
from three different perspectives; biogas for vehicle fuel. In the fifth of biogas in Sweden, which is
economy, energy and environment. area, it is most beneficial to continue 2000 GWh, the potential for biogas
The environmental perspective was as before. This is because the organic production from organic by-products
divided into global warming potential by-products in this area have a low from the food and drink industry
(GWP), acidification potential (AP) and biogas potential, compared to the by- is large. To be able to access this
eutrophication potential (EP). products in the other areas. From an potential the food industry can not be
energy perspective, scenario CHP is to the only actor involved. Cooperation
To handle the complexity of the prefer if the electricity to be replaced between the public sector and the
electricity mix in Europe, two different is coming from coal condensing energy sector is necessary as well
electricity systems were used; All power. If the electricity is coming as the industry. Biogas production
electricity from coal condensing from wind power scenario BAU and/ can be a resource efficient treatment
power and all electricity from or Vehicle is to be preferred instead method for organic by-products from
wind power. This to include the in the areas. From an environmental the industry. l
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