Changing regulations and the pressure to reduce greenhouse gas emissions into the atmosphere are driving upgrades in many areas of the economy. In line with this trend, the coke industry is also constantly optimizing its business strategy, with the aim of fully utilizing coke oven gas and reducing carbon dioxide as well as other air emissions associated with the combustion of coke oven gas. Coke oven gas, as a by-product of the coke production process, is most often burned as a gaseous fuel, for example in power plants. Various modifications to the process are being considered to make such technology less emissive. One of them is the use of hydrogen produced by water electrolysis performed with an electrolyzer powered by electricity from a photovoltaic system. This paper presents an analysis of the feasibility of production of renewable hydrogen by a coking company in order to be able to co-combust it with coke oven gas. It is estimated that such an innovative procedure should provide a solution to the problem of reducing carbon dioxide emission.