Case C-577/16: Judgment of the Court (First Chamber) of 28 February 2018 (request for a preliminary ruling from the Verwaltungsgericht Berlin — Germany) — Trinseo Deutschland Anlagengesellschaft mbH v Bundesrepublik Deutschland (Reference for a preliminary ruling — Environment — Scheme for greenhouse gas emission allowance trading within the European Union — Directive 2003/87/EC — Scope — Article 2(1) — Annex I — Activities subject to the trading scheme — Production of polymers — Use of heat supplied by a third-party installation — Application for free allocation of emission allowances — Period 2013-2020)