Pumped-storage hydroelectricity (PSH), or pumped hydroelectric energy storage (PHES), is a type of hydroelectric energy storage used by electric power systems for load balancing. A PSH system stores energy in the form of gravitational potential energy of water, pumped from a lower elevation reservoir to a higher…

Synchronverters (also called virtual synchronous generators or virtual synchronous machines) are inverters which mimic synchronous generators (SG) to provide "synthetic inertia" for ancillary services in electric power systems. Inertia is a property of standard synchronous generators associated with the rotating…

The energy efficiency in transport is the useful travelled distance, of passengers, goods or any type of load; divided by the total energy put into the transport propulsion means. The energy input might be rendered in several different types depending on the type of propulsion, and normally such energy is presented in…

A variable-frequency drive (VFD, or adjustable-frequency drive, adjustable-speed drive, variable-speed drive, AC drive, micro drive, inverter drive, variable voltage variable frequency drive, VVVF drive, or drive) is a type of AC motor drive (system incorporating a motor) that controls speed and torque by varying the…

Makro (stylized as makro) is a South African warehouse club retail chain. Owned by local retail holding company Massmart, it operates under the Dutch Makro brand name.

Get fit with quality gear and equipment from Makro. Shop for exercise machines, weights, accessories, and more. Achieve your fitness goals at great prices!

Shop essential home products at Makro Kitchen & Bathroom Supplies Store. Find a wide range of kitchen and bathroom supplies at unbeatable prices.

Find top laundry essentials at Makro. Shop now for the best deals on detergents, fabric softeners, and more to keep your clothes fresh and clean.

Co-op Energy is a membership-owned British energy supply company based in Warwick that began trading in 2010. It sells renewable electricity (some from community-owned sources) and gas to its ethically concerned member owner/customers and is an established large operator, an alternative to the Big Six energy suppliers.

This is a list of government owned and privately owned pharmacy schools in India. The Colleges are Approved by Pharmacy Council Of India (PCI) for conduction of D.Pharma or B.Pharma Course.