3. Revenue from sale

in PLN thousand	For the year ended 31 December 2018	For the year ended 31 December 2017 (transformed data)
Revenues from sale of finished goods	952 117	1 005 103
Revenue from sale, distribution and trade of electricity	412 130	399 121
Revenue from sale and distribution of heat	457 331	468 675
Revenue from energy origin certificates	75 921	87 825
Revenue from rental of investment property	4 228	3 728
Revenue from gas compensation	-	43 204
Revenue from sale of other products	2 507	2 550
Revenues from sale of merchandise and raw materials	8 505	9 101
Revenue from resale of electricity	7 823	8 378
Revenue from sale of merchandise and raw materials	682	723
	960 622	1 014 204