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The gravitational vortex water turbine puts a spin on small hydro
The interest in small hydropower systems, which can be used to generate local and off-grid electricity in small rivers and streams, has led to the development of a number of new designs all exploiting technologies which are not suitable for large scale hydro generation.
The vortex turbine uses both kinetic (run of river) and static potential energy (head) principles and promises to provide a power generation system that results in minimum interference with the river and aquatic life.
Mini hydropower plants have a good potential for providing electricity to remote communities. The gravitational water vortex power plant (GWVPP) is an economic and clean energy system which allows the conversion of the low-head potential energy into kinetic energy to drive power turbines by using a gravitation vortex pool.
17 April 2018: According to a report released by the International Energy Agency (IEA), energy efficiency measures could deliver more than a third of the cumulative reductions of GHG emissions necessary to meet the objectives of the Paris Agreement on climate change. Achieving these savings requires new policies and investments of US$1.7 trillion in energy efficiency and electrification of transport, the authors find.
Energy efficiency is a key component of the energy transition necessary to reduce energy-related emissions while responding to rising global energy demand due to economic growth and a growing global population. To increase understanding of the policies and investments required to achieve necessary improvements, the IEA’s report titled, ‘Perspectives for the Energy Transition: The Role of Energy Efficiency,’ analyzes the role of energy efficiency measures in three of IEA’s standard policy scenarios.
These scenarios include: the New Policies Scenario, which analyzes the impacts of existing polic
VOICES20/04/2018 06:00 SAST | Updated 20/04/2018 06:01 SAST
De Lille: Time For Climate-Change Action Is Now
The impact of climate change has the ability to compound existing challenges in urban environments.
Salga voices concern about impact of possible higher electricity tariffs on municipalities
19TH APRIL 2018
BY: MARLENY ARNOLDI
CREAMER MEDIA ONLINE WRITER
During public hearings being held to enable the National Energy Regulator of South Africa (Nersa) to determine whether to allow power utility Eskom to recoup R66.6-billion under the Regulatory Clearing Account (RCA) mechanism, the South African Local Government Association (Salga) has expressed concern that further electricity tariff hikes will disadvantage municipalities and communities.
Salga on Thursday stated that Eskom’s revenue requirements were causing uncertainty with regard to the future electricity pricing path in South Africa and, in turn, causing instability to the economy.
Salga and its members have assessed the RCA applications submitted by Eskom for the 2014 to 2017 financial years and have raised a series of concerns with Nersa.