Bulgaria Solar Energy - Market Share Analysis, Industry Trends & Statistics, Growth Forecasts (2026-2031)

Bulgaria solar energy market size in 2026 is estimated at 5.29 gigawatt, growing from 2025 value of 4.75 gigawatt with 2031 projections showing 9.07 gigawatt, growing at 11.35% CAGR over 2026-2031. This report is Segmented by Technology (Solar Photovoltaic and Concentrated Solar Power), Grid Type (On-Grid and Off-Grid), and End-User (Utility-Scale, Commercial and Industrial, and Residential). The Market Sizes and Forecasts are Provided in Terms of Installed Capacity (GW).

Bulgaria Solar Energy Market Trends and Insights

EU Green Deal & NECP-linked procurement pipeline

Bulgaria’s National Energy and Climate Plan mandates 27% renewables by 2030, requiring about 5 GW of new solar beyond 2024 levels. The November 2024 auction issued 3 GW of solar rights at EUR 55/MWh, 30% below the former feed-in tariff, proving solar’s cost leadership and pivoting procurement from administratively set rates to competitive tenders. Multilateral lenders have responded: IFC and Raiffeisen Bank International closed EUR 90 million of non-recourse debt for the 225 MW St. George park in October 2024, underscoring confidence in tender-backed pipelines. Winners must now secure grid capacity within 18 months or forfeit bid bonds, favoring developers with integrated land and EPC teams ESO.BG. This framework compresses project timelines and accelerates commissioning, directly lifting the Bulgarian solar energy market.

Corporate PPAs from data-centres & heavy industry

Rezolv Energy signed Bulgaria’s first virtual PPA in 2024, covering 110 GWh per year for Ardagh Group over 12 years and locking prices around EUR 0.11/kWh, 20% below average industrial tariffs. High tariffs, averaging EUR 0.14/kWh in 2024, make PPAs an immediate hedge for energy-intensive firms. Aurubis Bulgaria earmarked BGN 800 million through 2027 to build 41 MWp of on-site PV, cutting grid purchases by 15%. Data-center operators planning Sofia and Burgas sites require hourly 100% renewable matching by 2025 under corporate mandates, and IBEX’s 15-minute settlement now supports granular certificate tracking IBEX.BG. These corporate deals inject long-term cash flows, lowering financing costs and deepening the Bulgarian solar energy market.

Distribution-level grid congestion & curtailment risk

The 110 kV grid can evacuate only 12 GW nationwide, yet 3.91 GW of solar is already concentrated in the south, forcing ESO to curtail up to 15% of peak PV output during summer 2024. Curtailment costs generators an estimated EUR 8 million and triggered force-majeure claims in several PPAs. ESO’s 2024-2030 plan budgets BGN 1.2 billion to upgrade 18 substations, but most work will finish only after 2027. Developers are self-funding interim reinforcements. Rezolv Energy built 6 km of 110 kV lines at EUR 4 million to meet commissioning deadlines. The asymmetry is stark: rooftop systems under 30 kW avoid curtailment via net-metering, whereas utility-scale parks bear uncompensated shutdowns, tempering growth in the Bulgarian solar energy market.

Other drivers and restraints analyzed in the detailed report include:

• Declining LCOE of mono-PERC & TOPCon modules
• Grid-constrained “hybrid parks” pairing PV with batteries
• Slow rooftop permitting for systems < 30 kW

Segment Analysis

Solar PV retained a 100.00% hold on the Bulgarian solar energy market in 2025 and will grow at an 11.38% CAGR to 2031, driven by crystalline-silicon modules trading near EUR 0.10/W. CSP remains absent given Bulgaria’s 1,600 kWh/m² DNI, well below the 2,000 kWh/m² threshold for economic tower projects. TOPCon’s higher efficiency and lower temperature coefficient underpin its 60% share of 2024 additions, while bifacial designs delivered a 12% gain at the St. George brownfield site. Floating PV totals just 3 MW on irrigation ponds owing to regulatory ambiguity over water rights, yet Smart Solar’s local module factory will cut import dependence and may catalyze niche formats.

Aggressive price declines slash turnkey costs to EUR 500/kW for a 100 MW PV plant, one-fifth of an equivalently sized CSP project, locking in PV’s supremacy. Domestic manufacturing, led by Smart Solar Technologies, enhances supply security and creates spillovers for regional exports. These trends collectively enlarge the Bulgarian solar energy market size at both utility and rooftop scales.

Complete Report Scope:

• By Technology
  • Solar Photovoltaic (PV)
  • Concentrated Solar Power (CSP)
• By Grid Type
  • On-Grid
  • Off-Grid
• By End-User
  • Utility-Scale
  • Commercial and Industrial (C&I)
  • Residential
• By Component (Qualitative Analysis)
  • Solar Modules/Panels
  • Inverters (String, Central, Micro)
  • Mounting and Tracking Systems
  • Balance-of-System and Electricals
  • Energy Storage and Hybrid Integration

List of Companies Covered in this Report:

• Solarpro Holding PLC
• JinkoSolar Holding Co. Ltd
• GreenYellow Bulgaria
• Elsol Ltd
• SkyTech Energy Ltd
• NEMCOM Energy Company
• Hermes Solar Ltd
• Rezolv Energy
• Enery Development GmbH
• PPC Renewables
• OMV Petrom
• Masdar Clean Energy
• JA Solar
• First Solar Inc.
• Canadian Solar Inc.
• Trina Solar Co. Ltd
• Longi Green Energy
• Talesun Solar
• PV Innotech Ltd
• Sunotec Group

Additional Benefits:

• The market estimate (ME) sheet in Excel format
• 3 months of analyst support