--- path: "/" locale: pl-pl alternates: x-default: "/en-gb/information-resources/blog/why-a-home-battery-is-crucial-for-peak-shaving" en-gb: "/en-gb/information-resources/blog/why-a-home-battery-is-crucial-for-peak-shaving" nl-nl: "/nl-nl/informatie-resources/blog/waarom-een-thuisbatterij-cruciaal-is-voor-peak-shaving" de-de: "/de-de/informationen-ressourcen/blog/warum-ein-heimspeicher-fuer-peak-shaving-in-wohngebaeuden-unverzichtbar-ist" fr-fr: "/fr-fr/informations-ressources/publications/pourquoi-une-batterie-domestique-est-indispensable-pour-le-peak-shaving-residentiel" it-it: "/it-it/informazioni-risorse/argomenti/perche-una-batteria-domestica-e-fondamentale-per-il-peak-shaving-residenziale" title: "Home batteries & peak shaving for residential projects" description: "Discover how home batteries enable peak shaving, higher self-consumption, and energy trading. View premium residential storage directly at ESTG." type: information-resource --- # ESTG ![Why a home battery is crucial for peak shaving in residential projects](https://a.storyblok.com/f/288569/2000x2000/99c69965a2/why-a-home-battery-is-crucial-for-peak-shaving-in-residential-projects.jpg) # Why a home battery is crucial for peak shaving in residential projects ## What is a residential home battery? More and more households are switching to a home battery to get the most out of their [solar panels](/assortment/solar/solar-panels/). Where generated solar energy used to be fed directly back into the grid, a [home battery](/assortment/storage/batteries/) ensures that self-generated power stays within the household. This makes the home less vulnerable to rising electricity tariffs and grid constraints. ## How do peak shaving and self-consumption work with home batteries? In a standard household, peak solar generation occurs around midday, while electricity demand peaks in the evening when appliances, [heat pumps](/assortment/heat-cool/), and [electric vehicles](/assortment/e-mobility/) are turned on. Without storage, daytime surplus energy is exported. A home battery stores this surplus and discharges during the evening peak (peak shaving). This significantly increases direct self-consumption and protects against feed-in charges from energy suppliers. ## What is the advantage of a home battery with dynamic energy contracts? With the rise of dynamic energy contracts, the role of the home battery is evolving. Guided by a smart EMS, the battery automatically charges from the grid during cheap off-peak hours. When prices rise hours later, the battery supplies power to the home or exports it back to the grid, creating value year-round. ## Which premium home battery brands are available at ESTG? For your residential projects, ESTG provides a comprehensive portfolio of proven storage systems: - **Sungrow:** Industry-leading high-voltage modular batteries and hybrid inverters known for fast plug-and-play installation, high safety standards, and excellent efficiency. - **Growatt:** Versatile and scalable battery solutions that seamlessly integrate with single-phase and three-phase hybrid inverters. - **Marstek:** Innovative and compact home batteries excelling in user-friendliness and fast integration for both retrofit and new PV systems. ## Order home batteries directly for your projects The complete portfolio of residential energy storage systems is available directly from stock at ESTG. Log into your personal account for instant access to current B2B pricing, technical specifications, and stock levels. Questions about delivery, availability, or system compatibility? [Contact us directly](/about-estg/contact), our team is happy to assist. ## Spotlight Products () - **Growatt ARK XH Bateria Kabel** — [Art.No.: ARK XH BATTERY CABLE](https://www.estg.eu/pl-pl/ARK%20XH%20BATTERY%20CABLE/ark-xh-battery-cable) - **Sungrow Indirect Measuring DTSU666 (5) (80A)** — [Art.No.: BB002821](https://www.estg.eu/pl-pl/BB002821/sungrow-pomiar-po%C5%9Bredni-dtsu-666-5-80a) - **Sungrow Single Phase Meter S100** — [Art.No.: BB002862](https://www.estg.eu/pl-pl/BB002862/sungrow-single-phase-meter-s100) - **Ładowarka Growatt EV THOR 11AS-P-V1 (WIFI, MID)** — [Art.No.: CS00.0009400](https://www.estg.eu/pl-pl/CS00.0009400/growattastacjaaladowaniaa11aspv1aawifi%2Camid) - **Ładowarka Growatt EV THOR 22AS-P-V1 (WIFI)** — [Art.No.: CS00.0009600](https://www.estg.eu/pl-pl/CS00.0009600/thor-22as-p-v1-wifi) - **Growatt ShineMaster4G-X** — [Art.No.: GRO200.0152601](https://www.estg.eu/pl-pl/GRO200.0152601/growatt-shinemasterx) - **Growatt ATS-T (Auto Transfer Switch 3PH)** — [Art.No.: GROWATT ATS-T](https://www.estg.eu/pl-pl/GROWATT%20ATS-T/growatt-ats-t-auto-transfer-switch-three-phase) - **Inteligentny licznik Growatt TPM-CT-E (250A) trójfazowy - w zestawie 3x CT 250A** — [Art.No.: GROWATT TPM-CT-E](https://www.estg.eu/pl-pl/GROWATT%20TPM-CT-E/growatt-smart-meter-tpm-ct-e-3ph) - **Growatt ShineGPRS-X** — [Art.No.: GROWATT-SHINEGPRS-X](https://www.estg.eu/pl-pl/GROWATT-SHINEGPRS-X/growatt-shinegprs-x) - **Growatt 3PH Falownik hybrydowy SPH10000TL3 BH-UP** — [Art.No.: GROWATT-SPH-10KTL3-BH-UP](https://www.estg.eu/pl-pl/GROWATT-SPH-10KTL3-BH-UP/growatt-3ph-hybrid-inverter-sph10000tl3-bh-up) - **Growatt 3PH Falownik hybrydowy SPH5000TL3 BH-UP** — [Art.No.: GROWATT-SPH-5000TL3-BH-UP](https://www.estg.eu/pl-pl/GROWATT-SPH-5000TL3-BH-UP/growatt-3ph-hybrid-inverter-sph5000tl3-bh-up) - **Growatt 3PH Falownik hybrydowy SPH4000TL3 BH-UP** — [Art.No.: GROWATT-SPH-4000TL3-BH-UP](https://www.estg.eu/pl-pl/GROWATT-SPH-4000TL3-BH-UP/growatt-3ph-hybrid-inverter-sph4000tl3-bh-up) - **Growatt 3PH Falownik hybrydowy SPH6000TL3 BH-UP** — [Art.No.: GROWATT-SPH-6000TL3-BH-UP](https://www.estg.eu/pl-pl/GROWATT-SPH-6000TL3-BH-UP/growatt-3ph-hybrid-inverter-sph6000tl3-bh-up) - **Growatt 3PH Falownik hybrydowy SPH7000TL3 BH-UP** — [Art.No.: GROWATT-SPH-7000TL3-BH-UP](https://www.estg.eu/pl-pl/GROWATT-SPH-7000TL3-BH-UP/growatt-3ph-hybrid-inverter-sph7000tl3-bh-up) - **Growatt 3PH Falownik hybrydowy SPH8000TL3 BH-UP** — [Art.No.: GROWATT-SPH-8000TL3-BH-UP](https://www.estg.eu/pl-pl/GROWATT-SPH-8000TL3-BH-UP/growatt-3ph-hybrid-inverter-sph8000tl3-bh-up) - **Growatt 1PH Falownik hybrydowy SPH4600 BL-UP** — [Art.No.: GROWATT_SPH4600_BL_UP](https://www.estg.eu/pl-pl/GROWATT_SPH4600_BL_UP/growatt-1ph-inwerter-hybrydowy-sph4600-bl-up) - **Growatt 1PH Falownik hybrydowy SPH3600 BL-UP** — [Art.No.: GW-200.01454](https://www.estg.eu/pl-pl/GW-200.01454/growatt-1ph-hybrid-inverter-sph-3600-bl-up) - **Growatt APX 5.0P-B1** — [Art.No.: GW-200.0153800](https://www.estg.eu/pl-pl/GW-200.0153800/growatt-apx-5-0p-b1-modul-akumulatora) - **Growatt 3PH Falownik hybrydowy MOD 10KTL3-XH (BP)** — [Art.No.: GW-200.0157000](https://www.estg.eu/pl-pl/GW-200.0157000/growatt-mod-10ktl3-xh-(bp)) - **Growatt 3PH Falownik hybrydowy MOD 4000TL3-XH(BP)** — [Art.No.: GW-200.0162800](https://www.estg.eu/pl-pl/GW-200.0162800/growatt-mod-4000tl3-xh(bp)) - **Growatt 1PH Falownik hybrydowy SPH4000 BL-UP** — [Art.No.: GW-200.0169000](https://www.estg.eu/pl-pl/GW-200.0169000/growatt-1ph-hybrid-inverter-sph-4000-bl-up) ### Frequently asked questions about home batteries **What home battery capacity is suitable for a residential home?** The ideal capacity for most residential homes ranges between 5 kWh and 15 kWh. This depends on annual electricity consumption, PV system capacity, and the desired level of energy independence. **Can a home battery be easily expanded later?** Yes, most modern home batteries (such as systems from Sungrow, Growatt, and Sigenergy) feature a modular design. This allows additional battery modules to be added easily at a later stage as energy demand increases. **What is the difference between an AC-coupled and a DC-coupled home battery?** A DC-coupled battery stores direct current from solar panels before conversion, delivering higher overall efficiency. An AC-coupled battery connects to the home's alternating current grid, making it ideal for retrofitting existing PV systems.