A solar tracker is a device that orients a payload toward the Sun. Payloads are usually solar panels, parabolic troughs, Fresnel reflectors, lenses, or the mirrors of a heliostat.

Martin Guerre is a two-act musical with a book by Claude-Michel Schönberg and Alain Boublil, lyrics by Alain Boublil, Edward Hardy and Stephen Clark, and music by Claude-Michel Schönberg. Written in the operatic style similar to the creative team's previous efforts, Les Misérables and Miss Saigon, the bulk of the show…

Gautrain is an 80-kilometre (50-mile) higher-speed express commuter rail system in Gauteng, South Africa, which links Johannesburg, Pretoria, Kempton Park and O. R. Tambo International Airport. It takes 15 minutes to travel from Sandton to O. R. Tambo International Airport on the Gautrain and 35 minutes from Pretoria…

Leadership in Energy and Environmental Design (LEED) is a green building certification program used worldwide. Developed by the non-profit U.S. Green Building Council (USGBC), it includes a set of rating systems for the design, construction, operation, and maintenance of green buildings, homes, and neighborhoods,…

The Renewables Obligation (RO) is a market support mechanism designed to encourage generation of electricity from eligible renewable sources in the United Kingdom. There are three related schemes for the three legal jurisdictions of the UK. In April 2002 the Renewables Obligation was introduced in England and Wales,…

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…

A zero-carbon city is a goal of city planners that describes a significant reduction in carbon use by a city. The term describes a range of carbon reduction, ranging from a city that generates as much or more carbon-free sustainable energy as it uses, to a city that manages greenhouse gas emissions and reduces its…

e-toll (in South Africa) consisted of the electronic toll collection (ETC) processes employed by South Africa's roads agency SANRAL on selected toll roads or toll lanes in the Gauteng province, subject to the Sanral Act of 1998. SANRAL derives its income both from toll income and the national fiscus, while initial…

Financial Services MyDifference Customer Support Safe & Secure Easy Returns Sign In / Register Delivery Address 0 ENERGY & CLIMATE CHANGE We’re committed to playing our part in ensuring that the Woolies business is resilient in the face of climate change, while always making every effort to reduce o…

Johannesburg ( joh-HAN-iss-burg, US also -⁠HAHN-, Afrikaans: [jʊəˈɦanəsbœrχ] ; Xhosa: eGoli [ɛˈɡɔːli]; Zulu: iGoli [îˈɡóːli]), colloquially known as Jozi, Joburg, or "the City of Gold", is the capital city of the province of Gauteng and the largest city in South Africa. In 2022 (the year of the most recent census),…