Turkey's New Hourly Electricity Settlement Rules Threaten Industrial Renewable Investment

Turkey has overhauled its electricity market settlement mechanism, moving from a day‑ahead netting system to an hourly settlement model for the Day‑Ahead Electricity Market (GÖP) and the hourly netting (mahsuplaşma) process under the Renewable Energy Resource Guarantee (YEK‑G) framework. The change means that electricity generated by on‑site or rooftop solar installations can only be offset against consumption within the same hour, lowering the compensation received for excess generation and increasing costs when production dips.

Industrial firms that had planned renewable‑energy projects based on the previous settlement rules are now re‑evaluating their investment calculations. Many cite reduced payback periods and uncertain financial returns, signalling possible delays or cancellations of new solar installations until the impact of the hourly netting system becomes clearer. Business groups are urging authorities to reconsider the implementation timeline or provide transitional measures to preserve incentives for industrial decarbonisation.