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Why Invest in an Energy Storage System in 2025?

Technius August 29, 2025 4 min read
Dlaczego warto zainwestować w magazyn energii w 2025 roku?

Rising energy prices, new regulations regarding photovoltaic settlement, and increasing funding opportunities make energy storage systems one of the most important elements of modern RES installations. Investing in batteries not only lowers electricity bills but also increases independence from energy suppliers. Find out why 2025 is the best time for installation

Rising energy prices, new regulations for photovoltaic settlement, and increasing funding opportunities make energy storage systems one of the most important components of modern RES installations. Investing in batteries not only reduces electricity bills but also increases independence from energy suppliers. Find out why 2025 is the best time to install an energy storage system.

Self-consumption – up to 75% self-sufficiency

Thanks to energy storage systems, electricity produced during the day can be used in the evening and at night. This means a significant increase in the level of self-consumption – from about 25% to as much as 75%. The more energy you consume for your own needs, the lower your bills and the faster your investment pays off.

15-minute settlement – new regulations from September 2025

Until now, energy settlements were carried out in hourly intervals. The introduction of 15-minute settlements shortens the period for balancing energy produced and consumed by prosumers. This allows for a more accurate reflection of fluctuations in energy production and consumption, which is particularly important for renewable sources such as photovoltaic panels.

Subsidies for businesses

Entrepreneurs can also benefit from subsidies for energy storage. One of the most important solutions for businesses is the Energia Plus program, implemented by NFOŚiGW. It supports investments aimed at reducing energy consumption, emissions, and operating costs. Entrepreneurs can receive a preferential loan for the construction of an energy storage system – up to 85% of eligible costs, in amounts from PLN 0.5 million to PLN 500 million. This is an excellent opportunity for companies planning energy storage systems integrated with photovoltaic installations or other renewable sources.

Subsidies – "Mój Prąd" program and more

Just a few years ago, the cost of purchasing an energy storage system was a significant financial burden. Currently, technology prices have fallen, and additionally, you can count on government support. The "Mój Prąd" program offers up to 50% reimbursement of investment costs – up to PLN 16,000! This makes purchasing and installing batteries more profitable than ever before.

Grid stabilization – safety and reliability

An increasing number of photovoltaic users are experiencing problems with installations shutting down due to excessively high grid voltage. An energy storage system stabilizes the system's operation by accumulating excess energy and preventing overloads. This solution increases user comfort and protects the installation from failures.

DSR and system services – stability and increased safety

System services help maintain the stability and safety of the power grid, even when energy production and consumption change dynamically. They include, among others, frequency and voltage regulation, power reserve management, and emergency actions, such as the self-start of power plants after a failure (Black Start). Demand Side Response (DSR) services also play an important role – thanks to them, energy consumers can temporarily reduce their consumption at the operator's request, which helps stabilize the grid. With the growing share of renewable energy sources, such as photovoltaic panels or wind farms, DSR and other system services are becoming crucial because they increase system efficiency and reduce the need to maintain expensive reserves in traditional power plants.

Increased capacity without additional panels

It is not always possible to expand a photovoltaic installation due to limited roof space or building regulations. An energy storage system acts as a virtual expansion of the installation, allowing for maximum utilization of solar energy and increasing system efficiency without installing additional panels.

High rate of return – up to 20% per year

Modern energy storage systems are not just about savings, but also about investment. It is estimated that the rate of return on investment in an energy storage system can be as high as 20% per year. In practice, this means that within a few years, the purchase and installation costs are fully recovered, and then you start making real savings.

Using stored energy – saving on bills

An energy storage system allows you to store surplus electricity produced during the sunniest hours of the day, when consumption is low. The stored energy can be used during peak hours – in the morning and evening. This increases energy independence and allows for significant reductions in electricity bills.

Summary

An energy storage system in 2025 is an investment that combines savings, independence, and energy security. Thanks to increasing profitability, attractive subsidies, and new energy settlement rules, the decision to install a battery becomes a natural step for every photovoltaic installation owner.

If you want to reduce your electricity bills, increase self-consumption, and become independent of energy price fluctuations, an energy storage system is the ideal solution for you.

Want to make your company independent of rising energy prices? Check out our offer and choose the solution for you! Contact us. 

T

About Technius

We help companies cut energy costs — from audits and analyses to deploying energy storage and EMS systems. Our team has delivered hundreds of projects, saving clients millions of zloty.

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FAQ

Frequently asked questions

About energy cost optimisation in companies — answered in 30 seconds.

Three biggest levers: consumption profile (when you use power), fixed fees (contracted power, capacity charge), and market instruments (day-ahead market, DSR, energy storage). The fastest wins come from analysis — without it, it's hard to pick where to start.

EMS (Energy Management System) is a decision layer that controls energy in real time — when to buy, when to use storage, when to clip peaks. It pays off where energy is a meaningful operating cost and consumption profile varies.

Typically 4–7 years. The exact payback depends on contracted power, consumption profile, tariff and whether you can join DSR / system services. For 200 kW+ sites with high variability, ROI under 5 years is common.

It's a system fee billed during 4 peak hours on business days. You can really lower it by shifting consumption out of those hours — an EMS does this automatically; manually it's only partial. Often the fastest-growing line on your invoice.

Yes, but not for every company. Self-consumption is what matters — whether you use energy when the panels produce it. PV alone, without storage or profile shifting, often doesn't pay back fast. With storage + EMS the model changes fundamentally.

ETS pushes up energy prices via the CO₂ cost embedded in wholesale prices. ETS2 (from 2027) will hit transport and heating fuels. Companies that don't actively manage energy are more exposed — these aren't isolated price hikes, they're a trend.

First response within 24 business hours. The full analysis with potential calculations (peak shaving, storage, DSR, tariff optimisation) usually takes 3–7 business days, depending on data completeness from the DSO.

Programs supporting ESS for businesses are launching, but details change quickly. As part of the analysis we also check funding paths your company may qualify for.

Your turn

You know a lot about energy now — time to translate that into money

Book a free consultation with our expert. We check power peaks, consumption profile, fixed fees and energy storage potential. Reply within 24 business hours.

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