https://www.grantthornton.de/en/insights/2026/mark-ups-in-group-insurance-at-the-federal-fiscal-court--does-this-mean-the-end-of-the-federal-ministry-of-finance-circular-of-29112017/ Grant Thornton AG en 2026-08-02 Mark-ups in group insurance at the Federal Fiscal Court – does this mean the end of the Federal Ministry of Finance Circular of 29/11/2017? https://www.grantthornton.de/themen/2026/stromvkg-welche-chancen-bietet-der-neue-kapazitatsmarkt-fuer-batteriespeicher/ Deutschland - Grant Thornton de 2026-08-02 StromVKG: Welche Chancen bietet der neue Kapazitätsmarkt für Batteriespeicher?