(function() { function getParam(param) { let params = new URLSearchParams(window.location.search); return params.get(param); } function storeClickId(param, storageKey) { let value = getParam(param); if (value) { let record = { value: value, expiry: new Date().getTime() + 90 * 24 * 60 * 60 * 1000 }; localStorage.setItem(storageKey, JSON.stringify(record)); console.log(`✅ Stored ${param}:`, record); } else { console.log(`⚠ No ${param} found in URL`); } } function updateHubSpotIframe(attempt = 0) { let iframe = document.querySelector('iframe[src*="hsforms.com"]'); if (!iframe) { console.warn(`⚠ Attempt ${attempt}: HubSpot iFrame not found.`); if (attempt < 20) setTimeout(() => updateHubSpotIframe(attempt + 1), 500); return; } let gclid = JSON.parse(localStorage.getItem("gclid"))?.value || ""; let fbclid = JSON.parse(localStorage.getItem("fbclid"))?.value || ""; let li_fat_id = JSON.parse(localStorage.getItem("li_fat_id"))?.value || ""; let newSrc = iframe.src.split("?")[0] + `?google_clickid=${encodeURIComponent(gclid)}` + `&meta_clickid=${encodeURIComponent(fbclid)}` + `&linkedin_clickid=${encodeURIComponent(li_fat_id)}`; console.log("🔄 Updating HubSpot iFrame to:", newSrc); iframe.src = newSrc; } // Delay execution until page is fully loade
top of page

First Grid-Neutral Large-Scale Battery Storage System in North Rhine-Westphalia Officially Opened

4 days ago
2 min read

green flexibility commissions 10 MW / 25 MWh battery storage system in Ennigerloh and invites local residents to an open day


Kempten/Ennigerloh, August 13, 2026


green flexibility has officially commissioned its large-scale battery storage system in Ennigerloh. The facility has a power output of 10 megawatts and a storage capacity of 25 megawatt-hours. Located directly next to the Ennigerloh substation, it is green flexibility’s first project in North Rhine-Westphalia. At the same time, it is the company’s first large-scale battery storage system in NRW to operate on a grid-neutral basis.


With an investment of around €10 million, the project makes an important contribution to the energy transition in the region. The battery storage system can store electricity when renewable generation is particularly high and make it available again when needed. Through its grid-neutral operating strategy, the system takes the requirements of the regional power grid into account, supporting its stability and flexibility.


“Once we commit to expanding renewable energy, we also need to create the necessary infrastructure to store the electricity generated and use it flexibly. The battery storage system in Ennigerloh shows how this next step can be implemented locally and in practice. I am pleased that this innovative project has been realized here and is contributing to a secure and future-ready energy supply,” says Mayor Marc Berendes.


Following the official opening, green flexibility opened the facility to the public. Under the motto “Ennigerloh: Experience Battery Storage”, local residents, families, and other interested visitors had the opportunity to tour the battery storage system up close and speak with experts about battery storage technologies, the energy transition, and the significance of the project for the region.


“We were delighted by the strong interest from visitors. The many questions about the battery storage system showed that people want to understand how the technology works and the tangible contribution it can make to the energy transition and the region. Open dialogue is important to us — because trust is built when we engage with people, have open conversations, and make complex technology easy to understand.”

Hermann Schweizer, CTO and Co-Founder of green flexibility



WDR Video Feature:



Highlights from the Day:



 
 
bottom of page