Renewable Energy & Sustainability Heroes by GineersNow Engineering GineersNow Engineering Magazine Issue No. 017, Ren | Page 18

This tracking works via book-and-claim systems which fulfil the minimum criteria of the Greenhouse Gas Protocol Scope 2 Guidance, i.e. the most used standard for carbon accounting for purchased electricity and heat. Examples of such systems are the Guarantee of Origin (GO) system on the European electricity market and the US Renewable Energy Certificate (REC) system. A growing number of countries are introducing their own systems too. All these guarantee that each unit of green energy is sold only once and not double counted. From electricity to gas and heat Currently many of the discussions and actions are about electricity. But other sectors are also moving. Biogas is increasingly popular and many are preparing for growing volumes of renewable “power to gas”. Consumers getting their heat via district heatings systems are increasingly interested in making sure that ‘their heat’ has been produced from renewable sources. 16 Renewable Green Leaders • May 2017 EKOenergy-label as a helpful tool In 2013, a group of environmental organizations created the international, not-for profit EKOenergy label, to help consumers switch to renewable energy. The function of the label is threefold. First of all, it helps companies to navigate the energy markets. How