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2. Grid-tied electrical system - Wikipedia

   en.wikipedia.org/wiki/Grid-tied_electrical_system

   A grid-tied electrical system, also called tied to grid or grid tie system, is a semi-autonomous electrical generation or grid energy storage system which links to the mains to feed excess capacity back to the local mains electrical grid. When insufficient electricity is available, electricity drawn from the mains grid can make up the shortfall ...

3. Grid-tie inverter - Wikipedia

   en.wikipedia.org/wiki/Grid-tie_inverter

   A grid-tie inverter converts direct current (DC) into an alternating current (AC) suitable for injecting into an electrical power grid, at the same voltage and frequency of that power grid. Grid-tie inverters are used between local electrical power generators: solar panel , wind turbine , hydro-electric , and the grid.

4. Inverter-based resource - Wikipedia

   en.wikipedia.org/wiki/Inverter-based_resource

   An inverter-based resource (IBR) is a source of electricity that is asynchronously connected to the electrical grid via an electronic power converter ("inverter"). The devices in this category, also known as converter interfaced generation (CIG), include the variable renewable energy generators (wind, solar) and battery storage power stations. [1]

5. Solar inverter - Wikipedia

   en.wikipedia.org/wiki/Solar_inverter

   The key role of the grid-interactive or synchronous inverters or simply the grid-tie inverter (GTI) is to synchronize the phase, voltage, and frequency of the power line with that of the grid. [8] Solar grid-tie inverters are designed to quickly disconnect from the grid if the utility grid goes down. This is an NEC requirement that ensures that ...

6. Automatic generation control - Wikipedia

   en.wikipedia.org/wiki/Automatic_generation_control

   An electrical grid may have many types of generators and loads; generators must be controlled to maintain stable operation of the system. In an electric power system, automatic generation control (AGC) is a system for adjusting the power output of multiple generators at different power plants, in response to changes in the load. Since a power ...

7. Electricity sector in South Africa - Wikipedia

   en.wikipedia.org/wiki/Electricity_sector_in...

   Eskom is a South African electricity public utility, established in 1923 as the Electricity Supply Commission (ESCOM) and also known by its Afrikaans name Elektrisiteits voorsienings kommissie (EVKOM), by the government of the Union of South Africa in terms of the Electricity Act (1922). Eskom represents South Africa in the Southern African ...

8. South African energy crisis - Wikipedia

   en.wikipedia.org/wiki/South_African_energy_crisis

   South Africa's energy crisis (or load shedding) is an ongoing period of widespread national power outages beginning at the end of 2007. [ 1 ] [ 2 ] The South African government-owned national power utility, and primary power generator, Eskom , and various parliamentarians have attributed these rolling blackouts to insufficient generation capacity.

9. Massmart - Wikipedia

   en.wikipedia.org/wiki/Massmart

   Massmart Holdings Limited is a South African firm that owns local brands such as Game, Makro, Builder's Warehouse and CBW.It is the second-largest distributor of consumer goods in Africa, the largest retailer of general merchandise, liquor and home improvement equipment and wholesaler of basic foods. [4]