In this thesis, 1D coaxial and 2D parallel-plate electrodes are investigated for their application in electroporation. The application area is electroporation of algal biomass used as a feedstock for anaerobic digesters to increase methane gas yield. In this thesis, the focus is on the selection of proper electrodes, controls, DC power supply, RF connectors, and determination of the spacing between the electrodes. Electrical field generated by the electrodes will in general depend on the geometry of the electrodes; permittivity, and conductivity of the sample; and the applied voltage source. The effect of the electrode design as well as the frequency of the applied electric field on the effectiveness of electroporation is investigated. The behavior of the electric field in the sample at high frequency is simulated using electromagnetic simulators and the frequency-dependent impedance of the electrodes is measured for verification of the simulation model.