OPUS SOLIS

Your partner for the comprehensive development and delivery of advanced energy solutions.

Strategic partner across all project stakeholders and technical support for the execution of advanced energy systems.

Where partnerships, capital, technology and technical execution unite in a single solution.

OPUS SOLIS is an independent consulting and project management company specialised in photovoltaic systems and battery energy storage solutions (BESS). We operate at the intersection of engineering, project execution and strategic development, connecting key stakeholders in the energy sector - investors, EPC contractors, technology manufacturers, operators and financial partners.

Our added value is built on a partnership-driven model. Under our coordination, we establish and manage an extensive international network of experts and industry partners, enabling our clients access to verified technologies, capital sources, experienced contractors and regulatory as well as technical support across target markets.

We support projects from development stages, technical planning and turnkey implementation to operational support, maintenance and long-term portfolio expansion. Across the European Union, with a focus on industrial and utility-scale systems, we build a trusted link between capital, technology and reliable execution of next-generation energy projects.

Presence Across Key Energy Markets

We support investors, funds, developers, operators, EPC contractors and equipment suppliers in domestic and selected EU markets.

Markets:
Slovenia, Croatia, Hungary, Italy, Germany, Sweden, Poland, Romania

Our Services

Strategic Project Management and Energy Project Governance

As the lead project manager, we provide professional oversight of photovoltaic and battery storage projects. We coordinate stakeholders, manage financial and timeline frameworks, and ensure technical compliance throughout all project phases:

Project planning from initiation to commissioning
Coordination of investors, EPC contractors, suppliers and grid operators
Tender management and procurement documentation
Cost optimisation and financing support
Execution supervision, risk management and technical reporting
Integration of BESS and full compliance with grid requirements

Engineering, Procurement and Turnkey Delivery

We deliver complete EPC services for photovoltaic and battery storage systems - from technical concept to operational handover, including long-term maintenance:

Concept development, feasibility studies and design documentation
Procurement of modules, inverters, BESS units, transformers and related equipment
Construction and electromechanical works aligned with international standards
System testing, commissioning and grid connection documentation
Technical verification, performance tests and final client handover
After-sales service and maintenance via authorised technology partners

Supply of Battery Energy Storage Systems and Equipment

We act as an trusted supplier of energy storage solutions: Shenzhen SOFARSOLAR, KAMEL ESS. We provide technical advisory, commercial alignment, delivery support and system integration:

Professional advisory on system selection
Configuration optimisation (power, capacity, cycle life, cell technology)
Commercial terms, delivery schedules and contracting support
Technical support for EPC proposals and tenders
Certification, grid compliance and EU regulatory support

Operational Maintenance and Authorised Service

We ensure reliable system performance throughout its full life cycle, through preventive maintenance, diagnostics, rapid interventions and remote monitoring:

Preventive inspections and maintenance of PV and BESS systems
Remote monitoring, alarm management and system analytics
On-site diagnostics and technical interventions
Spare parts management and warranty support
Performance ratio optimisation and uptime improvement
System efficiency and availability optimisation

Business Development and Strategic Expansion

We support clients in entering new markets, developing opportunities, and establishing connections between capital, technology, and local partners, with a focus on securing access to RTB projects.

Identification and development of newWe systematically source, develop, and facilitate RTB project pipelines for investors and investment funds. PV & BESS opportunities
Identification and development of new PV & BESS opportunities
Local & financial partnership establishment with EPCs, investors and operators
Structuring of SPVs and financing frameworks
Tender preparation and funding support
Expansion of business activities beyond the energy sector

Our partners