İş Enerji

What İş Enerji does

İş Enerji Yatırımları A.Ş. is a Turkish renewable energy independent power producer (IPP) established in August 2022 as a wholly-owned subsidiary of Türkiye İş Bankası (İşbank Group), one of Turkey's largest banks. The company acquires and operates wind and solar power plants, holding an integrated portfolio of approximately 1,400 MW of installed renewable capacity — 802 MW of wind (74%) and 279.13 MW of solar (26%) — sufficient to supply approximately one million households annually. Its asset base includes Turkey's largest operational wind power plant (Soma WPP, 328.9 MW across 185 turbines), the Geycek WPP and Hybrid SPP in Kırşehir, Geycek Hybrid SPP, Cıngıllı SPP in Niğde, Poyraz WPP in Balıkesir, Göktepe WPP in Yalova (where a 132 MWh Rolls-Royce BESS project is under development), Metafor WPP in Bingöl, Yakaağızı WPP in Ağrı, Ege WPP in İzmir, Ahlat self-consumption SPP in Bitlis, and Şua SPP. International operations include the 380 MWp Mezıtür SPP portfolio in Hungary (operated with Polat Group via Mimas Solarpark K.f.t), plus entities in the Netherlands (Is Energy Investments B.V.) and Romania (Is Energy Romania S.R.L.). A 132 MWh battery energy storage project with Rolls-Royce is in development.

The company's business model combines electricity generation and sale to corporate off-takers and free consumers under bilateral PPAs, electricity trading through its dedicated subsidiary İş Perakende ve Toptan Elektrik Ticaret A.Ş. (established in 2025 with Polat Energy), and the issuance of International Renewable Energy Certificates (I-REC) sold independently of physical electricity to corporate customers seeking verifiable renewable procurement for ESG and carbon-footprint reporting. Revenue is generated from three streams: wholesale electricity supply, trading margin from retail and wholesale electricity distribution, and I-REC licensing fees. İş Enerji's customers are corporate energy consumers, free consumers (serbest tüketiciler), and other market participants in Turkey's liberalized electricity market. Strategic partnerships with Polat Group (Hungary JV, Geycek assets), the Aldo Family (Soli SPP controlling 38 solar companies), and Ateş Çelik (domestic wind equipment manufacturing) extend both its development pipeline and its vertical integration into the renewable supply chain. Capital structure includes TRY 8.85 billion paid-in capital and a Capital Markets Board-approved $250 million USD debt facility (June 2026) for continued corporate development.

Name

İş Enerji

Legal name

İŞ ENERJİ YATIRIMLARI ANONİM ŞİRKETİ

Website

https://isenerji.com.tr

Company type

Private

Founded year

2022

Operating status

Operating

Headcount range

51–100 employees

Short description

İş Enerji is a Turkish renewable energy IPP and subsidiary of Türkiye İş Bankası that operates approximately 1,400 MW of wind and solar capacity in Turkey and Hungary, supplying wholesale electricity, electricity trading services, and I-REC certificates to corporate off-takers and free consumers.

Ownership category

akta.pro rank

Product category

Renewable Energy Generation

NAICS

Wind Electric Power Generation (221115), Solar Electric Power Generation (221114), Electric Power Generation (22111), Electric Power Generation, Transmission and Distribution (2211)

SIC

Cogeneration Services & Small Power Producers (4991)

akta.pro primary industry

Renewable Energy Asset Management (Solar/Wind/Hydro/Geothermal) (EUAEAMAB)

akta.pro secondary industry

Wind Turbine OEMs & System Integration (Nacelle/Generator/Controls) (EUAMACAC)

Keywords

• Wind power generation
• Solar power plants
• Renewable energy supply
• Electricity trading
• I-REC certificates

Headquarters

HQ city

Istanbul

HQ country

Türkiye

HQ region

Europe

Offices10 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Infrastructure, Operations, Personnel, Others, Technology or R&D

Revenue model

1. Electricity Generation and Sale: İş Enerji operates wind and solar power plants, generating electricity that is sold into the grid or to corporate off-takers. The company holds an integrated portfolio of approximately 1,400 MW of operational renewable energy capacity, producing electricity that supplies approximately 1 million households annually.
2. Electricity Trading (İş Perakende ve Toptan Elektrik Ticaret A.Ş.): Through its subsidiary İş Perakende ve Toptan Elektrik Ticaret A.Ş., the company procures electricity from producers and suppliers and supplies it to free consumers and other market participants in the Turkish electricity market, operating under İş Enerji and Polat Energy umbrella.
3. I-REC Certificate Sales: The company issues and sells International Renewable Energy Certificates (I-REC) to corporate customers seeking to document and prove their renewable energy usage and reduce carbon footprint. Certificates are sold independently of the physical electricity.

Go-to-market motion2 records

Distribution channels3 records

Marketing channels5 records

Core offering

İş Enerji operates wind, solar, and hybrid power plants in Turkey and Hungary with a total installed capacity of approximately 1,400 MW. The company generates renewable electricity and supplies it to corporate customers and free consumers, primarily through bilateral arrangements and through its trading subsidiary İş Perakende ve Toptan Elektrik Ticaret A.Ş. It also issues and sells International Renewable Energy Certificates (I-REC) to corporate buyers.

Product overview

İş Enerji is a renewable energy company offering an integrated energy portfolio based primarily on wind and solar power generation. The company's core products consist of Wind Power Plants (Rüzgar Enerjisi Santralleri) and Solar Power Plants (Güneş Enerjisi Santralleri), which together form approximately 1,400 MW of installed capacity. Wind power accounts for 74% (802 MW) and solar for 26% (279.13 MW) of total capacity. The product portfolio includes seven operational wind farms (Soma WPP, Geycek WPP, Poyraz WPP, Göktepe WPP, Metafor WPP, Yakaağzı WPP, Ege WPP) and five solar facilities (Mezőtúr SPP in Hungary, Geycek Hybrid SPP, Cıngıllı SPP, Ahlat Self-Consumption SPP, Yakaağzı Hybrid SPP). Supporting products include Electricity Trading services through İş Perakende ve Toptan Elektrik Ticaret A.Ş., I-REC Certificates for sustainability documentation, and a planned Battery Energy Storage System. The company operates both domestically in Turkey and internationally through subsidiaries in the Netherlands, Romania, and Hungary.

Differentiator

Problem solved

Functional benefit

Products and services

• Soma Wind Power Plant (Soma RES) Soma WPP is a wind power generation asset described as Turkey's largest wind power plant, contributing to İş Enerji's overall renewable generation capacity.
• Geycek Wind Power Plant (Geycek RES) Geycek WPP is a wind power generation asset in İş Enerji's wind portfolio.
• Poyraz Wind Power Plant (Poyraz RES) Poyraz WPP is a wind power generation asset in İş Enerji's wind portfolio.
• Göktepe Wind Power Plant (Göktepe RES) Göktepe WPP is a wind power generation asset in İş Enerji's wind portfolio. The site is also the planned location for the company's Battery Energy Storage System project.
• Metafor Wind Power Plant (Metafor RES) Metafor WPP is a wind power generation asset in İş Enerji's wind portfolio.
• Yakaağzı Wind Power Plant (Yakaağzı RES) Yakaağzı WPP is a wind power generation asset in İş Enerji's wind portfolio, co-located with a hybrid solar plant (Yakaağzı Hibrit GES).
• Ege Wind Power Plant (Ege RES) Ege WPP is a wind power generation asset in İş Enerji's wind portfolio.
• Mezıtür Solar Power Plant (Mezıtür GES) Mezıtür SPP is a solar power generation asset in İş Enerji's solar portfolio.
• Geycek Hybrid Solar Power Plant (Geycek Hibrit GES) Geycek Hibrit GES is a hybrid solar power generation asset co-located with the Geycek WPP, supporting combined wind-solar generation.
• Cıngıllı Solar Power Plant (Cıngıllı GES) Cıngıllı SPP is a solar power generation asset in İş Enerji's solar portfolio.
• Ahlat Self-Consumption Solar Power Plant (Ahlat Öztüketim GES) Ahlat Öztüketim GES is a self-consumption solar power plant, used to directly supply electricity to a co-located industrial facility rather than feed into the grid.
• Yakaağzı Hybrid Solar Power Plant (Yakaağzı Hibrit GES) Yakaağzı Hibrit GES is a hybrid solar power generation asset co-located with the Yakaağzı WPP, supporting combined wind-solar generation.
• Göktepe Battery Energy Storage System (BESS) Göktepe BESS is a grid-scale battery energy storage project located at the Göktepe site, intended to store and dispatch electricity from İş Enerji's renewable portfolio.
• Electricity Trading (İş Perakende ve Toptan Elektrik Ticaret A.Ş.) Electricity trading services delivered through İş Enerji's subsidiary İş Perakende ve Toptan Elektrik Ticaret A.Ş., enabling wholesale and retail electricity sales in Turkey's deregulated market.
• International Renewable Energy Certificate (I-REC) Sales I-REC certificate issuance and sale, providing corporate buyers with documented proof that their electricity consumption has been matched with renewable generation from İş Enerji's portfolio.

Quantifiable outcome

• ~1,400 MW total installed capacity (802 MW wind + 279.13 MW solar), equivalent to annual electricity supply for ~1 million households
• +4 more outcomes

Segments2 records

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Five partnerships are on record, tiered core and minor.

• Ateş ÇelikcoreStrategic or Co-development Partner · 1 September 2025İş Enerji became a partner of Ateş Çelik, a leading domestic equipment manufacturer in renewable energy, specifically in wind power plant components. The partnership targets end-to-end domestic production of wind power plant components including turbine towers and generators. Ateş Çelik has operated for over 10 years in Turkey's wind energy sector and holds a leading position in domestic turbine equipment manufacturing.
• Polat Group (Polat Enerji)coreStrategic or Co-development Partner · 1 November 2023İş Enerji established Mimas Solarpark K.f.t in Hungary jointly with Polat Group in November 2023. The partnership operates Mezőtúr SPP (380 MWp across 6 solar plants: Szolnok-1 70 MW, Szolnok-2 69 MW, Szaszberek 90 MW, Mezotur 66.3 MW, Gyongyöshalasz 20 MW, Mezobereny 64.22 MW) and holds 50% stakes in Geycek WPP (214.6 MW) and Geycek Hybrid SPP (46.64 MWp) in Turkey. İş Perakende ve Toptan Elektrik Ticaret A.Ş. operates under both İş Enerji and Polat Energy umbrella.
• Is Energy Romania S.R.L.minorStrategic or Co-development Partner · 1 October 2023Is Energy Romania S.R.L. was established in October 2023 to operate in Romania as part of İş Enerji's international expansion strategy.
• Is Energy Investments B.V. (Dutch Holding)minorStrategic or Co-development Partner · 1 August 2023Is Energy Investments B.V. was established in August 2023 as the Dutch holding company of İş Enerji, serving as the international holding entity for the company's European operations.
• Aldo Family (Soli SPP)coreStrategic or Co-development Partner · 1 December 2022In December 2022, İş Enerji established Soli SPP with the Aldo Family for joint control of 38 energy companies operating solar power plants, expanding the company's solar portfolio significantly.

Scale indicators14 records

Recent moves10 records

Expansion highlights6 records

Broad incumbents

• Iberdrola Renovables: Global renewable energy arm of Iberdrola with deep wind and solar asset base in Europe, the Americas and Australia. Relevant for corporate renewable PPA, I-REC/government certificate revenue structures, and integrated hybrid+BESS value capture, though at substantially different scale.
• Statkraft: Norwegian state-owned renewable energy major active across European hydro, wind and solar markets, including Hungary. Useful comparable for European-market renewable IPP economics, hydro-wind-solar hybridization, and grid-services revenue models, though materially larger.
• Enerjisa Üretim: One of Turkey's largest private power generators, a Sabancı Holding and E.ON JV, with a diversified generation portfolio including significant wind and solar. Overlaps in B2B electricity sales to free consumers but is a much larger, multi-fuel incumbent rather than a renewable pure-play.
• EDP Renováveis (EDPR): One of the world's largest wind and solar developers, publicly listed in Lisbon. Relevant for European footprint benchmarking (İş Enerji's Hungarian and Romanian operations compete for similar EU corporate PPA and I-REC demand), though it operates at vastly greater scale and geographic breadth.

Emerging players

• Kontrolmatik Enerji: Turkish technology and EPC company expanding into renewable energy generation, BESS and smart grid solutions. Comparable as a Turkish-listed counterpart pursuing renewable + storage growth, with overlapping BESS and energy storage strategy to İş Enerji's Rolls-Royce partnership.

Direct peers

• Akfen Yenilenebilir Enerji: Turkish pure-play renewable energy IPP with operational wind, solar and hybrid assets under holding company Akfen Holding. Comparable in geography, technology mix (wind + solar), and B2B electricity sales model; useful benchmark for renewable-only multiples in Turkey.
• Sanko Enerji: Turkish private power producer within the Sanko Group with operational wind, solar and conventional capacity. Comparable in domestic Turkish IPP profile and corporate off-take model, although its portfolio is more diversified across fuel types.
• Galata Wind Enerji: Turkish wind-focused independent power producer listed on Borsa Istanbul, operating multiple wind farms across Turkey. Direct comparable on technology (wind), geography (Turkey), and business model (utility-scale wind IPP), making it the closest publicly traded peer for benchmarking capacity, PPA economics, and valuation multiples.
• Polat Enerji (Polat Group): JV partner of İş Enerji in Hungarian Mimas Solarpark and Geycek WPP/Hybrid projects, and co-umbrella operator of İş Perakende ve Toptan Elektrik Ticaret. Polat operates wind and solar assets in Turkey and is the most operationally entangled direct peer via shared economics.

Regional players

• BayWa r.e. European renewable energy developer and IPP with significant operations in Germany, the Netherlands and Central/Eastern Europe including Hungary. Directly comparable for İş Enerji's Hungarian Mezötúr portfolio economics and European expansion roadmap, though primarily a developer rather than long-term asset owner.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/@isenerji
• LinkedInlinkedin.com/company/isenerji
• Instagraminstagram.com/is.enerji

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles8 records

Subsidiaries7 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about İş Enerji