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Biogas Journal | <strong>Autumn</strong>_<strong>2017</strong> English Issue<br />
21 MW plant to provide electricity<br />
starting in 2021<br />
In addition to projects for converting solid<br />
biomass (sugar cane bagasse and wood<br />
chips), a biogas project in São Paulo also got<br />
through in the 2016 auction. With a planned<br />
capacity of 21 MW el<br />
, it offered electricity at a<br />
price of 251 Brazilian real per hour (equivalent<br />
to about 72 €/MWh) and should provide<br />
electricity starting in January 2021. The<br />
power purchase agreements are signed for<br />
a period of 25 years, so electricity auctions<br />
provide planning security for plants with an<br />
installed capacity of more than 5 MW el<br />
and<br />
make financing the investments easier. This<br />
progress is not reflected in the official statistics<br />
of the Brazilian Electricity Regulatory<br />
Agency (ANEEL), however. Between 2014<br />
and 2016, only seven new biogas into electricityconversion<br />
plants were added, with an additional installed<br />
capacity of 36.8 MW el<br />
(see table).<br />
Because landfill gas, sewage gas and biogas are not<br />
differentiated in Brazil, and because new plants were<br />
added only in the area of landfill gas, development<br />
seems to have stagnated at first glance. However, there<br />
are projects that take advantage of this lack of differentiation,<br />
which also means greater regulatory freedom.<br />
With an installed capacity of 2.8 MW el<br />
, the plant currently<br />
under construction by water utility SANEPAR,<br />
located directly next to the largest sewage treatment<br />
plant in the state capital of Curtiba, will ferment sewage<br />
sludge together with vegetable and market waste.<br />
In this regard, it will be a technological innovation and<br />
not just for Brazil. By using combined heat and power<br />
generation, the fermentation residue is dried and processed<br />
further into pelletised fertiliser. Overall, this<br />
photo: catharina vale<br />
lightens the load on the landfill considerably. Savings<br />
in disposal costs contribute significantly to the costeffectiveness<br />
of the business model.<br />
Improved framework conditions<br />
with support from Germany<br />
In order for these and other business models to be implemented<br />
in specific projects, many regulatory framework<br />
conditions for biogas plants have been created or<br />
significantly improved in recent years with the support<br />
of German-Brazilian cooperation.<br />
ffIn January 2015 in resolution 8/2015, Brazil’s National<br />
Agency of Petroleum, Natural Gas and Biofuels<br />
(ANP) specified biomethane, so that – as long<br />
as feedstocks from agriculture or agro-industry are<br />
used – biomethane can be fed into the natural gas<br />
grid and sold as fuel.<br />
Figure 2:<br />
Biogas plant<br />
in Castro,<br />
Paraná.<br />
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