Unisolar provides a complete range of services for the design, installation, and maintenance of Battery Energy Storage Systems – fully tailored to the needs of businesses, agricultural enterprises, industrial facilities, and private households.
We focus on implementing advanced, integrated storage solutions that ensure your energy independence, operational continuity, and long-term cost efficiency.
What Is BESS and Why It Is the Future of Smart Energy
BESS (Battery Energy Storage System) is an advanced technology for storing electricity generated from renewable or grid sources (solar, wind, or hybrid) for use when it’s needed most.
Key Advantages of Modern Battery Energy Storage Systems
- Energy Stability and Independence
BESS acts as a protective buffer, shielding your facility from voltage fluctuations or grid outages. It provides a reliable, uninterrupted power supply and reduces dependence on the central grid.
- Significant Cut of Electricity Costs
BESS allows you to store electricity when it’s cheap (e.g., at night or during peak solar generation) and use it during high-tariff hours.
- Backup Power and Resilience
In the event of blackouts or grid failures, BESS instantly takes over as your energy source, keeping critical systems operational. This is crucial during energy crises or supply disruptions.
Intelligent control systems optimise energy consumption schedules, reduce peak loads, and help avoid penalties for exceeding contracted capacity (known as peak shaving).
BESS can participate in grid balancing and ancillary services markets, allowing you to monetise stored energy or self-consumption surpluses through smart grid integration and trading.
- Sustainability and ESG Impact
Reduced fuel consumption and lower CO₂ emissions contribute to your organisation’s ESG and carbon neutrality goals, supporting Europe’s transition to clean energy.
BESS + Solar Power Plant: How They Work Together?
BESS reaches its full potential when integrated with a solar PV system, creating an efficient, self-sustaining ecosystem:
- Daytime storage of surplus solar energy → During peak generation hours, when your solar power station produces more energy than consumed, BESS stores the excess power.
- Night-time supply or low insolation → Instead of purchasing expensive electricity from the grid, stored energy is used during the night or cloudy periods.
- Emergency backup → In the event of a grid outage, BESS automatically switches to backup mode, maintaining power supply while your solar system continues generating. Such integration of a solar power plant with BESS significantly improves solar project ROI, enhances self-consumption, and transforms your solar installation into a truly autonomous energy system.
| A standout example of advanced green energy integration is our recently completed 7.6 MW solar power plant for TOP VALDAR S.R.L. in Moldova. This project combines high-efficiency photovoltaic modules with a battery energy storage system (BESS) to deliver uninterrupted power, optimize energy utilization, and maintain stable performance even during periods of low solar generation.
Solar PV plant + BESS solution empowers our client to maximize investment returns, achieve full energy independence, and feed surplus electricity back into the grid – a model of how smart energy solutions can drive both sustainability and profitability. |
Our End-to-End EPC Services for BESS Projects
Unisolar delivers turnkey energy storage projects of any scale – from standalone residential systems to large industrial BESS installations.
Our services include:
- Custom BESS solutions tailored to your consumption profile and operational needs
- Integration with existing solar power systems or complete project development from scratch
- Proven equipment from trusted global brands (Jinko Solar, Huawei, Azzurro, Longi Solar)
- Professional installation, commissioning, and project supervision
- Warranty and post-warranty O&M services
- Expert energy optimisation consulting
With over 15 years of proven experience and 300+ MW of commissioned solar and energy storage projects in Lithuania, Ukraine, and Moldova, Unisolar brings European-level reliability and expertise to every project.
Take the First Step Toward Energy Independence
Looking for a stable and cost-efficient power supply? Contact us and our engineers will design an optimal BESS solution tailored to your needs.
