Dutch technology SME specialising in solid-state battery scale-up and advanced oxidation reactor engineering for water and energy applications.
Powall is a Dutch technology SME based in Delft with demonstrated expertise in two technically distinct but electrochemically adjacent fields: advanced reactor engineering for water and wastewater treatment, and solid-state lithium battery materials. In REWATERGY, they contributed to the design and scale-up of photochemical and catalytic reactor systems tackling micropollutants, antibiotics, and microplastics at the water-energy nexus. In SOLiDIFY, they shifted focus toward upscaling solid-state lithium metal battery components — specifically ionic liquid-based composite electrolytes and the interfacial engineering needed to make them viable for industrial manufacturing. Their common thread appears to be translating advanced materials and electrochemical processes from laboratory scale into manufacturable systems, the kind of engineering work that bridges academic discovery and industrial deployment.
SOLiDIFY (2020-2024) placed Powall at the center of solid composite electrolyte and ionogel development, including thin lithium foil handling and artificial interphase engineering for manufacturable cells.
REWATERGY (2019-2023) engaged Powall in sustainable reactor design using UV-C/LED-driven advanced oxidation processes for removal of antibiotics, ENMs, and microplastics from water.
REWATERGY explicitly targets the intersection of water treatment efficiency and energy use, with catalysis and hydrogen production as linked outputs.
Both projects require translating electrochemical material systems — whether oxidation catalysts or solid electrolytes — into scalable, controllable processes, suggesting a transferable core competence.
Powall entered H2020 in 2019 with a focus on water treatment reactor engineering — catalysis, UV-C/LED photochemistry, and removal of emerging contaminants like antibiotics and microplastics. Just one year later, they joined SOLiDIFY and pivoted sharply into solid-state battery materials, with keywords like ionogel, ionic liquid electrolytes, and lithium metal interphases replacing the water treatment vocabulary entirely. With only two projects it is difficult to say whether this reflects a deliberate strategic pivot toward energy storage or simply an opportunistic expansion into a second technical domain where their process engineering skills are transferable.
Powall appears to be moving toward energy storage as a primary focus — solid-state battery scale-up is a higher-growth, higher-investment space than water treatment, and their most recent and largest project sits squarely there.
Powall has participated exclusively as a consortium partner — never as coordinator — across both of its H2020 projects. This positions them as a specialist contributor brought in for specific technical capabilities rather than as a project driver. Their 26 unique partners across 12 countries over just two projects suggests they join well-networked international consortia, which is consistent with the MSCA-ITN and RIA funding types that typically involve large multi-institution teams.
Despite only two projects, Powall has built connections with 26 distinct partner organisations across 12 countries — an unusually broad network for an SME at this stage. This signals that they have been embedded in large, well-structured European consortia rather than niche bilateral collaborations.
Powall is a rare SME that has engaged meaningfully in both clean water technology and advanced energy storage within a short window — giving them cross-domain exposure that few organisations of their size possess. Based in Delft, they operate in one of Europe's strongest engineering and materials science ecosystems, likely with close ties to TU Delft research infrastructure. For consortium builders, they offer the credibility of a private industrial partner with genuine hands-on involvement in materials scale-up, without the overhead of a large corporate partner.
