As our global commitment to sustainable energy gains momentum, one technological marvel takes center stage: Battery Energy Storage Systems (BESS). Beyond the buzz, let's uncover the nuances of BESS, shedding light on the fundamental questions that define its role in shaping our energy future.

What are Battery Energy Storage Systems (BESS)?

At its core, BESS is an advanced technological solution designed to store energy in various ways for later use. In a world prone to energy fluctuations due to weather, blackouts, or geopolitical reasons, BESS emerges as a vital pillar for ensuring a continuous and reliable power supply for utilities, businesses, and homes.

How do battery storage systems work?

The operating principle of BESS is straightforward: they receive electricity from the power grid or renewable sources like solar panels, storing it as current to be released when needed. When coupled with intelligent software, BESS becomes a platform leveraging AI, machine learning, and data-driven solutions for advanced energy consumption management. This flexibility enables users to adapt to demand and supply fluctuations, contributing to climate change mitigation.

What is the lifespan of battery energy storage systems?

Most BESS last between 5 to 15 years, playing a pivotal role in the ecosystem of solutions for the energy transition. Sustainability goals include the reuse and recycling of batteries, aligning with Circular Economy principles.

What are the advantages of battery storage systems?

• Environmental Gains: BESS installed in homes or businesses powered by renewable energy reduces pollution, contributing to the energy transition and combating global warming.
• Lower Energy Costs: By storing low-cost energy and consuming it during peak periods, users can shift consumption, avoid higher charges, and save money, especially when combined with free sources like solar power.
• Grid Independence: BESS ensures a continuous energy supply even during grid instability, offering resilience against peaks in demand or extreme weather conditions.

Do batteries used in BESS need a carbon footprint declaration?

The EU Battery Regulation has set requirements for the performance and carbon footprint of batteries, targeting among other applications industrial batteries exceeding 2 kWh. BESS (excluding external storage) will need to have a carbon footprint declaration from February 2026. For those batteries used in energy storage systems with external storage, carbon footprint declarations will start to apply later on in time.