Price caps in the Turkish day-ahead power market will be calculated based on a weighted average formula, bringing the maximum limit considerably below the current level of 2,000 lira/MWh ($257.28/MWh), energy regulator EPDK has announced.
Under the new formula, the hourly maximum price will be capped at double the weighted average of day-ahead prices in the past 12 months ending two months prior to the current month. The cap has been set at TL563/MWh for 7-31 October, energy exchange Exist said. Price caps will also apply to the balancing market.
Exist this morning rejected participants' bids for hourly spot prices, asking them to resubmit in line with the new price cap. The day-ahead delivered at TL409.34/MWh, with prices in hours 15-20 settling at TL563/MWh.
Prices in the day-ahead and balancing platforms since last month have risen to their highest since December 2016 as strong demand recovery, along with declining renewable output and near-maximum capacity utilisation rates at imported coal-fired plants, has provided support to gas-fired units with higher marginal costs. The balancing price hit the previous cap of TL2,000/MWh on 3 September, whereas hourly prices rose to TL982/MWh for 17 September delivery. At the same time, day-ahead prices for delivery today averaged a four-year high of TL440.35/MWh.
Turkish spot prices have rarely delivered above TL350/MWh in the past few years as state-owned utility Euas, which operates nearly 60pc of Turkey's hydro storage capacity, has adjusted its ceiling price and hydro output to include more gas plants in the power mix that would otherwise have remained largely uncompetitive against coal.
The decision comes amid rising power procurement costs for consumers in the liberalised market. The latter — which are mostly industrial users — buy power via spot-indexed contracts that are based on the sum of day-ahead prices, the Yek renewable fee, a capped profit margin and financing costs. Grid operator Teias charges the Yek fee to fund Turkey's Yekdem renewable feed-in-tariff (FiT) scheme.
But Yekdem subsidies are paid in US dollars, which meant that Teias has charged increasingly higher Yek fees as the Turkish lira has extended steady losses against major international currencies. The fee was nearly double EPDK's initial estimates earlier this year, reaching an all-time high of TL233.30/MWh in April.
Turkish near-term power contracts have not taken direction from the announcement. The November base-load contract was last seen around TL308/MWh for financial delivery on the Viop futures and options exchange today, suggesting a physical settlement of TL311/MWh, just TL1/MWh from where it was assessed by Argus a day earlier. And December base load was seen around TL306/MWh on the same platform, implying a physical level of TL309/MWh, unchanged from a day earlier.

