State-owned utility and power generator HSE is targeting 800MW of flexibility assets across Slovenia by 2035, including pumped hydro energy storage (PHES) and battery energy storage systems (BESS).
The 800MW will be made up of 590MW of pumped hydro energy storage (PHES), 150MW of battery energy storage systems (BESS), 50MW of electrolysis and 10MW of active consumption (AO). The latter wasn’t defined but most likely refers to ‘prosumers’, i.e. consumers of electricity that also have their own generation and can therefore consume more flexibly.
The figures may include two BESS units totalling 60MW which HSE subsidiary Dravske elektrarne Maribor (DEM)is planning to co-locate with a PHES unit, reported on previously by Energy-Storage.news.
HSE is also considering adding a BESS unit to its Prapretno 3 PV project, but said that funds from the EU’s Just Transition Fund (JTF) would need to be obtained to do so. The JTF provides funds to territories expected to the most negatively impacted by the transition to climate neutrality. Other countries to have used the funding for energy storage include Cyprus.
Slovenia is also utilising the EU’s State Aid Temporary Crisis and Transition Framework to provide €150 (US$160 million) in state aid for renewables and energy storage projects, with funding set to be allocated no later than the end of next year.
The BESS market in Slovenia is currently dominated by independent power producer (IPP) NGEN, which has the three projects totalling 90MWh and is set to build another, 140MWh, system. The company will be speaking at Solar Media’s Energy Storage Summit Central Eastern Europe (CEE) 2024 in Poland later this month.
NGEN, a developer based in Slovenia, has celebrated the installation of a 22MWh grid-scale battery energy storage system (ESS) supplied by Tesla in what is thought to be the product's first deployment in the Balkans.
The company tweeted that an official opening event had taken place on 10 October for the battery, which is claimed to also currently be the largest Tesla Powerpack battery system in Europe, although not the largest ESS project on the continent by any provider.
Energy-storage.news emailed NGEN to request confirmation and for more information this morning, receiving confirmation that information provided has been accurate, while the site also got a promise from NGEN to speak in more depth with the company in the near future from the company's leadership team.
In the meantime, regional news outlet Balkan Green Energy News offered a brief report on the project, which is in Jesenice, north-west Slovenia. The site reported that the battery energy storage system (BESS) will be used to balance grid frequency in the area and could help integrate much larger shares of renewable energy onto the grid, also reporting that NGEN said its next system will be constructed in Slovenia within eight months.
The Balkan Green Energy article also said NGEN is seeking to also assist others in executing their own ESS projects, which could see NGEN installing and operating plants as well as providing software and offering technical assistance.
The Jelenice project may also end upbeing one of the final really large Tesla projects to use the Powerpack at grid-scale, with the company having recently launched Megapack, which is a modular system solution available in 3MWh 'blocks' and intended for utility use.
16 October 2019: Ths article has been amended from its original form to remove the name of a Tesla sales representative involved in the deal owing to Tesla internal company policy – Energy-Storage.news has reluctantly removed the name and reference to tweets – which were publicly available.
A Tesla-powered Slovenian energy company has just launched its third–and largest–Megapack project to date, helping support 70 percent of the country’s energy grid.
Slovenia’s NGEN first started utilizing Tesla Megapacks for energy storage and grid stabilization in 2019. The country became the first in the Balkin Peninsula to install a grid-scale battery storage unit with the implementation of 126 Tesla Powerpacks capable of a 22.2 MWh capacity. It was the first project NGEN launched using Tesla Megapacks.
In 2020, NGEN upped the ante by installing an even larger project. The second project would consist of twelve Tesla Megapacks to provide NGEN with a 30.2 MWh capacity, helping support the grid, which extends from Turkey to Norway. The grid is fed with alternating current, which has a frequency of approximately 50.0 Hz, NGEN told us.
NGEN announced it would open its third battery storage project, costing €16 million. Its largest yet, the new energy storage expansion project will be a 20MW/40MWh Megapack system. With the new project, NGEN now has over 60MW of flexibility available.
NGEN said the need for constant expansion is justified by centralized power grids. Any faults in the grid could cause a blackout, and since many grids expand across several countries, the effects of a blackout could be detrimental. Issues in grid stabilization could cause a continental outage, leaving most European residents without power.
Instead, NGEN believes grid decentralization enables better control in communities, as a fault would cause only a microgrid to fail, affecting significantly fewer people.
Although the company is currently involved with several grid and large-scale energy stabilization projects, it said that it also has its focus on individual households, which it plans to utilize Tesla Solar and Powerwall for. The company said it has already prepared a package for customers to consider, which would offer a better deal for the combination of a solar array and Powerwall for excess energy storage.
June 15, 2023: The European Commission said on June 9 it had approved a €150 million ($163 million) state-aid scheme to develop battery storage and renewables in Slovenia. This follows…
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