What is infrastructure investing? Infrastructure is an asset class that falls under the umbrella of alternative investments. It is typically considered in an overall portfolio context, alongside other alternative or private-market asset classes such as real estate and private equity. Infrastructure refers to the basic systems and services that are necessary for a country to function effectively. Traditional sub-sectors include utilities such as gas, water, and electricity networks; transportation such as airports, toll roads, railways, and seaports; social infrastructure like hospitals and schools; and energy infrastructure such as power plants and pipelines. Newer sub-sectors have also emerged and become mainstream. Examples are digital infrastructure — the likes of data centres, fibre optic networks, and telecommunications towers — as well as energy transition infrastructure, such as renewable energy and energy storage facilities. Infrastructure investments generally have the following characteristics: inelastic demand, relatively stable cash flows, low volatility, and low long-term exposure to commodity prices.  ...