Quinbrook Infrastructure Partners

Quinbrook Infrastructure Partners

Quinbrook Infrastructure Partners was established in 2015 by David Scaysbrook and Rory Quinlan, both veterans of Macquarie Group's infrastructure division. The firm was purpose-built to invest in the energy transition, targeting large-scale, long-duration infrastructure assets that directly facilitate the shift to a lower-carbon economy. From its London headquarters, Quinbrook operates across three core English-speaking OECD markets, bringing a developer's mindset to asset creation rather than simply acquiring operating projects. The firm executes a specialized infrastructure strategy concentrated on renewable power generation, battery energy storage systems, and associated grid infrastructure. Quinbrook takes a 'build and manage' approach, often originating projects from greenfield development through to construction and operations. The portfolio spans onshore wind, utility-scale solar photovoltaic arrays, and standalone battery storage assets designed to provide critical grid stability. Quinbrook's capital is deployed through long-dated, closed-end fund vehicles that align with the 20- to 30-year useful lives of the underlying assets. Confirmed investments include the Gemini Solar + Storage project in Nevada, which upon completion ranks among the largest solar and battery storage installations in the United States, and the UK's first grid-scale battery storage system using Tesla Megapack technology at its Minety project in Wiltshire. Quinbrook has expanded its footprint to include offices in Houston, New York, and Australia's Gold Coast, reflecting the geographic concentration of its portfolio. The firm's investment vehicles are designed for institutional investors such as pension funds and sovereign wealth funds seeking inflation-linked, contracted cash yields from hard assets. Adjacent to its fund management business, Quinbrook has also seeded operating platforms to manage its assets directly, a structure that reinforces operational oversight and value creation. In October 2023, Quinbrook announced the close of its Net Zero Power Fund at $3 billion, one of the largest dedicated energy transition infrastructure fundraises globally that year (per the firm, October 2023). Quinbrook distinguishes itself through what can be termed an 'originate-to-operate' model. Unlike traditional infrastructure fund managers that primarily acquire de-risked, operational projects, Quinbrook allocates significant internal resources to development-stage engineering, procurement, and construction management. This allows the firm to capture development margin, control project timelines, and directly shape asset performance. The dual structure — pairing a fund management platform with in-house operating businesses — creates alignment uncommon in the infrastructure sector. In a market where many generalist infrastructure funds now claim energy transition credentials, Quinbrook's single-sector focus and greenfield-origination engine represent a genuine structural commitment to the build-out of next-generation energy infrastructure.