Bulgaria achieved a significant milestone in its renewable energy sector by adding 1,416 MW of solar capacity in the past year. This growth marks the third consecutive year of annual solar additions exceeding 1 GW, bringing the nation’s total installed solar capacity to 5,984 MW, as reported by the ENTSO-E Transparency Platform.
The expansion was predominantly driven by ground-mounted utility-scale projects, which accounted for approximately 90% of the new installations. Factors contributing to this growth include the availability of suitable land, robust developer interest, improved access to financing, and the increasing competitiveness of solar technology. Many projects are now progressing without reliance on subsidies, supported by both local and international financial institutions that have facilitated a substantial pipeline of projects reaching financial closure or entering construction phases over the last 18 months.
Energy storage is becoming increasingly integral to Bulgaria’s energy landscape. Developers are implementing standalone battery systems alongside new and existing solar plants to mitigate price cannibalization and address declining electricity prices. These energy storage solutions are anticipated to help stabilize price fluctuations and enhance grid flexibility.
A notable project commissioned last year was the initial phase of the Tenevo hybrid project, which integrates 315 MW of solar capacity with 760 MWh of energy storage. Additionally, the Selanovtsi hybrid facility, located in the Vratsa region, combines 59.8 MW of solar power with 107.3 MWh of storage capacity. Furthermore, Bulgaria has also launched one of the largest standalone battery installations in the EU adjacent to a 107 MW solar facility.
<pThe commercial and industrial (C&I) segment is experiencing growth as rising electricity prices incentivize businesses to invest in self-consumption systems, frequently paired with battery storage. In contrast, residential solar adoption remains limited due to regulatory complexities and inadequate incentives. Currently, household electricity prices are regulated and constitute about 40% of national demand; achieving full market liberalization is viewed as essential for unlocking rooftop solar potential and enhancing storage solutions.
Bulgaria is poised for a potentially record year in 2026, with approximately 2.5 GW of solar projects either under construction or at advanced stages expected to come online by year-end. The energy storage pipeline is also promising, with around 15 GWh anticipated for commissioning by mid-year, bolstered by initiatives outlined in the National Recovery and Resilience Plan.
However, emerging policy risks could impact this trajectory. Recent increases in taxes and recycling fees on solar panels and batteries have surged significantly—now five to ten times higher than those in comparable EU nations. These elevated costs may pose challenges for new investments unless they align more closely with EU standards.
