Figure 3From: The flat-plate plant-microbial fuel cell: the effect of a new design on internal resistancesElectricity production (mA/m2) in top, middle and bottom sections of P-MFC 1 during day 115 through 337 in which top section produces most electricity. Fluctuations in power output over time are caused by changes in medium composition as described in Helder et al. 2011 [13].Back to article page