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Table 3.

Cost, amount of electricity and heat Energy, revenue from the sale of Energy and heat for sewage sludge and maize silage.

Volume Unit Sewage sludge Maize silage
Cost of substrate PLN 0 140
Amount of electricity MWh·t-1 FM 0.08 0.28
Amount of heat energy MWh·t-1 FM 0.10 0.31
Revenue from the sale of electricity PLN·t-1 FM 27.17 89.15
Revenue from the sale of heat PLN·t-1 FM 8.71 28.58
Balance PLN·t-1 FM +35.88 -22.27

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