BESS is a system that enable storage and intelligent management of electrical energy.
BESS is an attractive investment creating value through energy arbitrage and grid services
We manages the entire process – from analysis and design to installation and ongoing operation
Download our white paper and gain deeper insight into how BESS works and technological possibilities.
BESS (Battery Energy Storage System) is a battery storage system connected to the company’s electrical installation.
A BESS installation is available in various sizes and requires approval from both energy authorities and fire authorities upon installation. The purpose of installing a BESS is to store electricity, which can provide a number of financial benefits in the volatile electricity market that characterises Northern Europe. The greatest benefits are achieved when there is already an investment in renewable energy generation, either rooftop- or ground-mounted—typically photovoltaic (PV) systems—which produce “free” electricity during daylight hours.
BESS supports the energy transition and creates value by:
BESS makes it possible to balance supply and demand, reduce congestion, and provide ancillary services to the grid.
Safe and modern technology
BESS is a technology that emerged in the early 2010s alongside developments in lithium-ion batteries. Since then, continued innovation has driven battery prices down to a level where BESS now represents a sound investment for companies with energy-intensive operations.
In particular, significant advances have been made in storage capacity, meaning that systems today range from small 5 kWh residential batteries to large-scale industrial batteries of up to 25 MWh, which can be integrated into large combined installations. In the United States, the world’s largest BESS facilities can store up to 3,200 MWh.
BESS solutions can be delivered either as rack-based or container-based systems, connected directly to existing electrical installations via an Energy Management System (EMS) that automatically optimises operation and consumption.
A BESS installation is a technically and financially complex investment that affects energy supply, operations, and the company’s risk profile. Although the technology is mature, the underlying conditions vary significantly from one company to another. It is therefore crucial that the decision to invest in BESS is made on an informed basis and with realistic expectations regarding both benefits and limitations.
Develop a realistic business case
A BESS investment should always be evaluated through a comprehensive business case that reflects total costs, savings, and revenues over the system’s expected lifetime. It is essential that the business case is based on realistic assumptions rather than maximum or purely theoretical scenarios.
The business case should include all relevant CAPEX and OPEX elements, including investment costs, service, software, warranties, and potential battery depreciation. On the revenue side, both stable savings and more variable income streams should be included—with a clear distinction between secure and uncertain elements.
In addition, sensitivity analyses should be conducted to illustrate how changes in electricity prices, tariffs, utilisation, or battery degradation impact returns. A realistic business case does not necessarily produce the highest return on paper, but it provides the strongest foundation for a decision that remains robust over time.
The choice of installer is critical to whether a BESS installation meets both technical requirements and financial expectations. A BESS is not a plug-and-play solution, but a complex system that must be properly designed, integrated, and operated over many years.
A qualified BESS installer should be able to document experience with comparable systems, possess in-depth knowledge of applicable regulations and standards, and take responsibility for the entire process from design to commissioning. Equally important is the ability to incorporate operational and market integration considerations from the outset.
The installer often plays a central role in dialogue with grid operators, authorities, and other stakeholders. For this reason, the collaboration should be based on clear roles, transparency, and long-term accountability—not solely on price. Making the right choice at this stage significantly reduces risk and increases the likelihood that the system delivers its expected value throughout its entire lifetime.
Get expert advice on BESS from one of Denmark’s strongest teams of consultants within BESS and renewable energy. We offer an informal, no-obligation dialogue and a free preliminary assessment of your BESS opportunities.
Contact Rachid Jabbar
Sales & Tender Manager
SolarFuture ApS
Tel.: +45 4149 0001
E-Mail: rja@solarfuture.dk
SolarFuture has consolidated all our knowledge, market insights, and hands-on experience with Battery Energy Storage Systems (BESS) into a comprehensive white paper, providing you with a clear and up-to-date overview of the Danish BESS market.
In the white paper, you will gain:
You can download the white paper directly from this page by completing the contact form. In return, you gain access to a valuable decision-making foundation that can be used for both strategic planning and concrete projects within energy storage and the green transition.
*All fields are mandatory
In a time of rising electricity prices, increasing electrification, and greater volatility in energy markets, Danish companies are facing new demands on their energy consumption. At the same time, pressure is growing to reduce CO₂ emissions and to document active efforts toward the green transition. Battery Energy Storage Systems (BESS) provide companies with an effective tool to both optimise energy consumption and strengthen operational reliability.
With a BESS, a company can take control of when and how electricity is used, rather than being solely dependent on the power grid. The solution creates flexibility in a daily operating environment characterised by volatile electricity prices and new tariff structures. In addition, energy storage opens up new business opportunities within the energy system. The investment also contributes to a more robust and future-proof energy strategy.
On this basis, there are several concrete advantages that make BESS an attractive investment. Below, we outline the five most important reasons.
BESS makes it possible to store electricity when prices are low and use it during peak demand periods. This reduces both energy costs and demand charges. This is particularly relevant in Denmark, where electricity prices fluctuate significantly in the power market.
A BESS can function as a backup during power outages and voltage fluctuations. It protects critical systems and production processes from downtime. For many companies, operational reliability is directly linked to revenue.
BESS can participate in ancillary services such as frequency regulation and flexibility markets. This creates an additional revenue stream by making capacity available to the power grid. The Danish energy market is already mature in this regard.
Investment in energy storage reduces the carbon footprint and supports the green transition. It strengthens the company’s ESG reporting and brand positioning toward customers, investors, and authorities. At the same time, it prepares the company for future regulatory requirements and tariff structures.
Companies with solar installations can store surplus generation instead of exporting it to the grid at low prices. This significantly increases self-consumption and improves the return on investment in renewable energy. At the same time, dependence on the grid is reduced.
