Posts tagged as generation

Mozambique generates extra power

  Aggreko, in partnership with Electricidade de Moçambique (EDM), the state power utility has commissioned 11 MW of generation capacity in the port city of Nacala, northern Mozambique. This facility will be further increased by 7 MW in the coming weeks, bringing the total capacity of the plant to 18 MW. With consistent annual GDP growth […]

Renewables provide over 16% of US electricity

  The total renewable energy sources now account for 16,6% of the entire installed operating generating capacity in the US. Out of this, water constitutes 8,4%, wind 5,5%, biomass 1,38%, solar 0,96% and geothermal steam 0,33%. Renewable energy capacity now records a higher production rate than that of nuclear (9,14%) and oil (3,94%) combined. Renewable […]

2015: New era or dark future?

  Without getting into any arguments about how the start and finish of decades are calculated, I will state that we are now just past the halfway mark of the 2010s decade. 2015 seems to be a good target year for achieving goals by many programmes, in fact the whole decade seems to have been […]

Recommendations to address the generation capacity “crisis” in SA

  The 2014 electricity blackouts in have brought into stark relief the failure by government, the Department of Energy, the Department of Public Enterprises, Eskom and municipalities to provide an adequate and sustainable electricity supply to meet the growing needs of the country, the economy and its people. The 1998 Government White Paper on Energy […]

Using magnetic slot wedges in hydro generators

  The stator of a hydro generator is usually designed and constructed with open slots. Windings (bars or coils) are inserted into the stator core and then fixed with the non-magnetic slot wedges. Open slots result in slot harmonics which have an effect on some of the characteristics of the generator, such as total harmonic […]

Nuclear reactions

  The recent announcement of the signing of an agreement between the South African government and the Russian nuclear company Rosatom has created a flood of speculation and comment about the future of nuclear power generation in this country. The official announcement describes the deal as an “intergovernmental agreement on strategic partnership and cooperation in […]

Does coal have a future?

  Coal’s future does not look bright in America. Rules already in place and others proposed by the Environmental Protection Agency (EPA) will make it increasingly difficult to build new coal-fired power plants unless they come with carbon capture and storage (CCS) technology, currently an expensive and technically challenging proposition. Europe, where coal has enjoyed […]

Gas to electric power generation potential

  Gas power generation (GPG) has increased significantly in the past few years , with gas overtaking coal in some countries. GPG offers greater efficiency and lower CO2 emissions than coal, as well as other operational advantages. The shale gas potential in South Africa as well as natural gas discoveries in southern Africa have increased […]

Designing a high pressure feed water heater

  In a power generation process, the heat generated in the boiler can be used for heating purposes in other parts of the power plant in order to improve overall efficiency. A wide range of heat exchangers are used in power stations, some of which are feed water heaters, which are used to raise the […]