{"data":[{"date":"2026-06-13","flex_eur_mwh":203.34},{"date":"2026-06-14","flex_eur_mwh":194.99},{"date":"2026-06-15","flex_eur_mwh":156.23},{"date":"2026-06-16","flex_eur_mwh":132.5},{"date":"2026-06-17","flex_eur_mwh":103.25},{"date":"2026-06-18","flex_eur_mwh":428.09},{"date":"2026-06-19","flex_eur_mwh":187.39},{"date":"2026-06-20","flex_eur_mwh":181.51},{"date":"2026-06-21","flex_eur_mwh":151.08},{"date":"2026-06-22","flex_eur_mwh":236.12},{"date":"2026-06-23","flex_eur_mwh":484.74},{"date":"2026-06-24","flex_eur_mwh":603.74},{"date":"2026-06-25","flex_eur_mwh":261.48},{"date":"2026-06-26","flex_eur_mwh":308.51},{"date":"2026-06-27","flex_eur_mwh":219.05},{"date":"2026-06-28","flex_eur_mwh":160.5},{"date":"2026-06-29","flex_eur_mwh":219.93},{"date":"2026-06-30","flex_eur_mwh":393.38},{"date":"2026-07-01","flex_eur_mwh":149.19},{"date":"2026-07-02","flex_eur_mwh":127.61},{"date":"2026-07-03","flex_eur_mwh":139.4},{"date":"2026-07-04","flex_eur_mwh":141.11},{"date":"2026-07-05","flex_eur_mwh":140.78},{"date":"2026-07-06","flex_eur_mwh":145.3},{"date":"2026-07-07","flex_eur_mwh":122.97},{"date":"2026-07-08","flex_eur_mwh":155.14},{"date":"2026-07-09","flex_eur_mwh":178.33},{"date":"2026-07-10","flex_eur_mwh":146.34},{"date":"2026-07-11","flex_eur_mwh":157.27},{"date":"2026-07-12","flex_eur_mwh":155.7},{"date":"2026-07-13","flex_eur_mwh":165.14}],"meta":{"zone":"DE-LU","index":"FLEX-2H v1.0","unit":"EUR per MWh of shifted energy","method":"Max of avg(discharge 2h window) \u2212 avg(charge 2h window) over the published day-ahead 15-minute curve, charge completing before discharge. Methodology is versioned and immutable; see voltcast.com\/indices.","license":"Free to view and quote with attribution (\"Voltcast Flex Index\"). Commercial referencing (contracts, settlement, indexation) requires a license: sales@voltcast.com."}}