The availability and uptake of green electricity in the United Kingdom has increased in the 21st century. There are a number of suppliers offering green electricity in the United Kingdom.

Solar power is a major contributor to electricity supply in Australia. As of December 2025, Australia's over 4.29 million solar PV installations had a combined capacity of 45.1 GW photovoltaic (PV) solar power.

Sustainable distribution refers to any means of transportation / hauling of goods between vendor and purchaser with lowest possible impact on the ecological and social environment, and includes the whole distribution process from storage, order processing and picking, packaging, improved vehicle loadings, delivery to…

Solar power is an important source of electricity in India. Since the mid-2010s, India has increased its solar power significantly with the help of various government initiatives.

The Sudair PV IPP is a solar photovoltaic (PV) power plant located in Sudair Industrial City, Saudi Arabia.

Solar water heating (SWH) is heating water by sunlight, using a solar thermal collector. A variety of configurations are available at varying cost to provide solutions in different climates and latitudes.

The Comanche Solar Project is a 120 megawatt (MWAC) photovoltaic power station near the city of Pueblo, Colorado. It became the largest solar facility in the state when it came online in late 2016.

Multi-junction (MJ) solar cells are solar cells with multiple p–n junctions made of different semiconductor materials. Each material's p–n junction will produce electric current in response to different wavelengths of light.

Spain is one of the first countries to deploy large-scale solar photovoltaics, and is the world leader in concentrated solar power (CSP) production. Spain is also one of the European countries with the most hours of sunshine.

Building insulation materials are the building materials that form the thermal envelope of a building or otherwise reduce heat transfer. Insulation may be categorized by its composition (natural or synthetic materials), form (batts, blankets, loose-fill, spray foam, and panels), structural contribution (insulating…