1.1. Overview of potential applications for battery storage in commercial and industrial settings<\/h3>\n\n\n\n
A commercial or industrial battery storage system \u2013 especially when combined with a photovoltaic installation \u2013 can provide various operational advantages. Key application areas include:<\/p>\n\n\n\n
- \n
- optimised self-consumption<\/li>\n\n\n\n
- peak shaving<\/li>\n\n\n\n
- emergency power supply<\/li>\n\n\n\n
- shared electricity use within an energy community<\/li>\n\n\n\n
- dynamic tariffs (use of variable prices on the wholesale electricity market)<\/li>\n<\/ul>\n\n\n\n\nDiscover the benefits of a solar battery<\/a><\/div>\n<\/div>\n\n\n\n
Furthermore, there are additional potential monetisation mechanisms that can generate additional revenue and increase return on investment \u2013 for example, through \u201carbitrage on the imbalance market\u201d or so-called \u201cancillary services\u201d. However, these opportunities are currently not available in Luxembourg, as they depend on the further development of the market and the regulatory framework, which is still being established.<\/p>\n\n\n\n
\nOptimise the use of your battery with an energy management system<\/h4>\n\n\n\n
EMS (Energy Management System):<\/strong> To activate and optimise certain applications, battery storage systems must be equipped with a compatible energy management system (EMS). This device monitors, controls, and optimises the energy flow within a circuit located behind the grid connection point. This circuit includes the battery, the inverter and its photovoltaic system, charging stations for electric vehicles, and possibly a heat pump. All of these energy devices must be capable of communicating data and receiving commands, which makes it essential to ensure their compatibility.<\/p>\n<\/div><\/div>\n\n\n\n
1.2. Analysis of typical consumption and production profiles of companies<\/h3>\n\n\n\n
Before investing in a battery storage system, it is important to understand the 15-minute consumption and production profiles in order to identify potential energy optimisation opportunities.<\/p>\n\n\n\n
![\"\"](\"https:\/\/klimapaktfirbetriber.lu\/wp-content\/uploads\/2025\/07\/Graph_Autoconso_Entreprise_bis_EN-1024x519.png\" "\\"Production")
Average solar electricity production and consumption over 24 hours in a company<\/em><\/figcaption><\/figure>\n\n\n\nIdentification of different energy profiles of companies<\/h4>\n\n\n
\n![\"\"](\"https:\/\/klimapaktfirbetriber.lu\/wp-content\/uploads\/2025\/07\/KLIMA0001_Graphique_EN_6-1024x724.png\")
Profile A<\/em><\/figcaption><\/figure>\n<\/div>\n\n\n Profile A: A company with solar production below its consumption<\/strong><\/p>\n\n\n\n
All produced energy is self-consumed, e.g., a government office or a store with limited roof space. <\/p>\n\n\n\n
\u27a1\ufe0f Conclusion<\/strong>: This profile is not suitable for the installation of a battery storage system.<\/p>\n\n\n\n
<\/div>\n\n\n\n![\"\"](\"https:\/\/klimapaktfirbetriber.lu\/wp-content\/uploads\/2025\/07\/KLIMA0001_Graphique_EN_5-1024x724.png\")
Profile B<\/em><\/figcaption><\/figure>\n<\/div>\n\n\n Profile B: A company that produces more during the day than it consumes<\/strong><\/p>\n\n\n\n
Opportunity to store excess production and release it in the evening or at night when consumption rises again, e.g., a cafeteria.<\/p>\n\n\n\n
\u27a1\ufe0f Conclusion<\/strong>: This profile could, under certain conditions\u2014including a profitability calculation\u2014consider using a battery storage system to cover the energy consumed in the morning.<\/p>\n\n\n\n
<\/p>\n\n\n
\n![\"\"](\"https:\/\/klimapaktfirbetriber.lu\/wp-content\/uploads\/2025\/07\/KLIMA0001_Graphique_EN_1-1-1024x724.png\")
Profile C<\/em><\/figcaption><\/figure>\n<\/div>\n\n\n Profile C: A company that produces more energy during the day than it consumes, with a fleet of electric vehicles that are in use during the day and need to be charged at night<\/strong><\/p>\n\n\n\n
For example, a transport company or a postal service provider.<\/p>\n\n\n\n
\u27a1\ufe0fConclusion:<\/strong> This profile could, under certain conditions\u2014including a profitability calculation\u2014consider the use of a battery storage system to cover energy consumption during the night.<\/p>\n\n\n\n
<\/p>\n\n\n
How do you obtain your consumption and production data?<\/strong><\/span><\/summary>
\n\n- \n
- Retrieve your 15-minute interval data from Leneda<\/a>, the national energy data platform.<\/li>\n\n\n\n
- Ask your energy supplier.<\/li>\n<\/ul>\n\n<\/div><\/details><\/div>\n\n
How to interpret your data?<\/strong><\/span><\/summary>
\n\n- \n
- Consult an engineering firm or a specialised service provider.<\/li>\n<\/ul>\n\n<\/div><\/details><\/div>\n\n
Inform yourself about the type of electricity contract your company has concluded:<\/strong><\/span><\/summary>
\n\n- \n
- Low voltage or medium voltage contract?<\/li>\n\n\n\n
- Fixed contract, variable contract, or dynamic tariff?<\/li>\n<\/ul>\n\n<\/div><\/details><\/div>\n\n
Define your future energy potential or future electricity demand:<\/strong><\/span><\/summary>
\n\n- \n
- Possibility to expand your photovoltaic system?<\/li>\n\n\n\n
- Planning future electricity consumption:\n
- \n
- electrification of your vehicle fleet \u27a1\ufe0f Installation of charging infrastructure at the company.<\/a><\/li>\n\n\n\n
- replacement of the heating boiler with a heat pump.<\/li>\n\n\n\n
- others.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n<\/div><\/details><\/div>\n\n\n
1.3. Is investing in a battery storage system economically interesting for my company?<\/h3>\n\n\n\n
In which cases can investing in a battery storage system be profitable for my company<\/h4>\n\n\n\n
A battery is resource-intensive and remains a considerable investment, even with available subsidies. It is therefore important to consider various parameters to determine when such an installation is economically viable. Profitability increases if the following parameters are met:<\/p>\n\n\n\n
- \n
- Proper sizing of the battery<\/li>\n\n\n\n
- High electricity prices<\/li>\n\n\n\n
- Low feed-in tariff<\/li>\n\n\n\n
- Competitive battery pricef.<\/li>\n<\/ul>\n\n\n\n
How to size the battery storage system?<\/strong><\/h4>\n\n\n\n
Battery sizing is a critical factor in profitability calculations. Consult a qualified electrician or an engineering firm to professionally determine the battery size suitable for your current and future energy profile.<\/p>\n\n\n\n
\nMaking the best choice for your company\u2019s energy consumption<\/h4>\n\n\n\n
A precise understanding of the consumption and production profile is crucial to correctly size the battery and, above all, to assess whether the investment is economically viable. Conscious and sensible energy consumption also enables savings through feeding excess energy back into the grid and through energy-saving behaviours. Depending on your energy profile, investing in a battery storage system is not necessarily the best solution. Discover the measure on electricity sharing.<\/a><\/p>\n<\/div><\/div>\n\n\n\n
<\/span>Electricity consumption: identifying the most suitable solution and the feasibility of the battery storage installation project<\/h2>\n\n\n\n
Request for a feasibility study<\/h3>\n\n\n\n
- \n
- Compliance of the existing electrical installation<\/li>\n\n\n\n
- Availability of necessary space<\/li>\n\n\n\n
- Compatibility with existing photovoltaic systems (inverters)<\/li>\n\n\n\n
- Compatibility with an energy management system (EMS)<\/li>\n<\/ul>\n\n\n\n
Inquiry with various providers<\/h3>\n\n\n\n
- \n
- Grid operator for battery connection (in case of feed-in)<\/li>\n\n\n\n
- Service provider\/electrician who will install the battery<\/li>\n<\/ul>\n\n\n\n
Calculation of investment profitability<\/h3>\n\n\n\n
Calculation of investment profitability
When calculating profitability, it is important to consider not only the technical feasibility of the project but also the economic feasibility, taking into account the following parameters:<\/p>\n\n\n\n- \n
- guaranteed battery lifespan (> 10 years)<\/li>\n\n\n\n
- number of guaranteed charge\/discharge cycles (> 5,000 cycles)<\/li>\n<\/ul>\n\n\n\n
Generally, for industrial-scale battery storage, local usage alone, i.e., self-consumption and peak load shaving, yields a return on investment in the yield of about 8 to 12 years.<\/p>\n\n\n\n
\nIdentify electricity storage applications relevant to your company’s situation<\/strong><\/p>\n\n\n\n
A combination of different applications can significantly increase the profitability for the company. For example, by using the battery storage which is helping to increase self-consumption of solar energy in summer to engage in energy arbitrage in winter. We strongly recommend hiring an engineering firm to identify possible applications specific to your case and to assess the feasibility and profitability of the project.<\/p>\n<\/div><\/div>\n\n\n\n
<\/span>Subsidy application<\/h2>\n\n\n\n
Government subsides<\/h3>\n\n\n\n
\nPlease note: any application for government or non-government subsidies must comply with the \u201cincentive effect\u201d, subject to compliance with the subsidy conditions.<\/strong>
In order to respect the \u201cincentive effect\u201d, no binding commitment (signing a quotation; paying a deposit) may be made BEFORE having received the agreement in principle from the State or the electricity and natural gas supplier following an application for subsidy.<\/p>\n<\/div><\/div>\n\n\n\nIn the absence of a dedicated state subsidy for the installation of a storage battery, there are two types of subsidies available for storage batteries: those in combination with the installation of a photovoltaic system, and tax incentives.<\/p>\n\n\n\n
Klimabonus<\/a><\/h4>\n\n\n\n
The Klimabonus state subsidy scheme also supports the installation of a storage battery, but only when it is installed together with a photovoltaic system or added to an existing system at a later date.<\/p>\n\n\n\n
For the installation of an additional battery, a period of at least five years must have elapsed since the previous battery was brought into service. The subsidy rate for batteries is calculated based on the battery\u2019s capacity, using the following formula:<\/p>\n\n\n\n
QBat<\/sub> * (500 – (500\/18) * QBat<\/sub>) \u20ac<\/strong><\/p>\n\n\n\n
QBat<\/sub>: usable capacity of the storage system in question, expressed in kilowatt hours (kWh) and rounded to two decimal places.<\/p>\n\n\n\n
This formula applies to batteries with a capacity between 2 and 9 kWh. For capacities above 9 kWh, the subsidy for the battery is set at \u20ac2,250.<\/p>\n\n\n\n
Here you can find more details on the subsidy application procedure<\/a>.<\/p>\n\n\n\n
- \n
- If you have any questions, please contact Klima-Agence<\/a><\/li>\n<\/ul>\n\n\n\n
Call for tenders to support investment in large-scale photovoltaic installation projects<\/h4>\n\n\n\n
As part of competitive tenders for photovoltaic installation projects, the State supports the establishment of photovoltaic power plants through investment aid. This subsidy is granted to encourage companies to produce their own energy.<\/p>\n\n\n\n
There is currently no open call for tenders under the investment aid scheme.<\/strong><\/p>\n\n\n\n
An indicative multi-year calendar now makes it possible to anticipate future opportunities.<\/p>\n\n\n\n
- If you have any questions, please contact Klima-Agence<\/a><\/li>\n<\/ul>\n\n\n\n
- electrification of your vehicle fleet \u27a1\ufe0f Installation of charging infrastructure at the company.<\/a><\/li>\n\n\n\n
- Ask your energy supplier.<\/li>\n<\/ul>\n\n<\/div><\/details><\/div>\n\n
- Retrieve your 15-minute interval data from Leneda<\/a>, the national energy data platform.<\/li>\n\n\n\n