“Procuring renewable electricity in some countries/markets is challenging. If a country does not have its own energy attribute tracking system, RE100 recommends international certificate systems such as I-RECs or TIGRs, which are intended for regions without an existing or reliable attribute tracking system. Companies can also explore direct procurement contracts such as a PPA with a supplier, and secure renewable energy attributes contractually. If these options are not available, RE100 recommends that companies either investigate onsite (or near-site) renewable options, which is a popular option in China, or that the company tries to aggregate demand with other companies in the same region to develop a solution. RE100 is happy to discuss opportunities to connect members in regions where sourcing renewable electricity is particularly challenging.” Source: http://there100.org/faqs