An energy crisis or energy shortage is any significant bottleneck in the supply of energy resources to an economy. In literature, it often refers to one of the energy sources used at a certain time and place, in particular, those that supply national electricity grids or those used as fuel in industrial development.

DCC Energy plc (formerly DCC plc) is a multi-energy sales and distribution business operating in Europe and the US. Headquartered in Dublin, DCC Energy plc is listed on the London Stock Exchange and is a constituent of the FTSE 100 Index.

Opus Energy Limited supplied gas and electricity to businesses across the United Kingdom. It purchases electricity from wind, solar, hydro, and anaerobic digestion generators, and provides support to develop energy-generating sites.

NextEra Energy, Inc. is an American energy company that is the world's largest electric utility holding company by market capitalization, with a valuation of over $187 billion as of July 2026.

The Energy Institute (EI) is a professional organization for engineers and other professionals in energy-related fields. The EI was formed in 2003 by the merger of the Institute of Petroleum (dating back to 1913) and the Institute of Energy (dating back to 1925).

A low-energy house is characterized by an energy-efficient design and technical features which enable it to provide high living standards and comfort with low energy consumption and carbon emissions. Traditional heating and active cooling systems are absent, or their use is secondary.

The Ruakākā Energy Park is a co-located battery energy storage system (BESS) and photovoltaic power station in Ruakākā, Northland, New Zealand. The BESS has an output of 100MW and storage of 200MWh.

The economy of Bihar has been among the fastest-growing state economies in India in recent years. During the financial year 2025–26, Bihar's gross state domestic product (GSDP) is projected to grow by around 10–12% at current prices.

Bulb Energy Ltd, trading as Bulb, was an energy supply company in the United Kingdom acquired by Octopus Energy in 2022. Founded in 2013, the company attracted venture capital from DST Global and Magnetar Capital and ran at a financial loss while achieving rapid growth in customers.

A target market is a group of customers within a business's serviceable available market at which a business aims its product features, marketing efforts and pricing. A target market is a subset of the total market for a product or service.