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Green technologies involve the use of radioisotope waste from nuclear power plants to generate electricity by directly converting the energy of radiochemical transformations through semiconductor structures. The generation of multi-nanolevel electricity by means of the heterostructure of silicon carbide on the silicon substrate was tested (on the example of a radioisotope medical product containing C-14). The content of C-14 in the SiC phase was determined at the doping level, but this was sufficient to generate nonequilibrium carriers in the p-n region of the transition in silicon carbide and their separation by the space charge region field, while dark currents from 16 to 90 nA were observed in the external circuit. The measurements were carried out on the stand excluding electromagnetic interference without the formation of metallization of the contact pads by the tip probe method. Idling voltage was amounted to 1.6 mV. The thickness of the activated n-SiC film in the heterostructure is 5 µm. References: Gurskaya A.V., Dolgopolov M.V., Chepurnov V.I. C-14 Beta Converter // Physics of Particles and Nuclei. 2017. — Vol. 48. Issue 6. — P. 941-944. Akimchenko A., Chepurnov V., Dolgopolov M. etc. Betavoltaic device in por-SiC/Si. C-Nuclear Energy Converter // EPJ Web of Conferences. — 2017. — Vol. 158.