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Saft showcases battery technologies for PV market

A Saft Batteries product story
Edited by the Engineeringtalk editorial team Sep 22, 2009

Saft is showing its full range of battery technologies at this year's European Photovoltaic Solar Energy Conference and Exhibition (EU PVSEC) in Hamburg, which runs until 25 September.

The company's nickel-cadmium (Ni-Cd), nickel-metal hydride (Ni-MH) and lithium-ion (Li-ion) battery technologies are claimed to represent a total capability to meet the specific and varying energy storage needs of the photovoltaic (PV) market.

Three main product ranges will be on show: Sunica.plus Ni-Cd batteries, which are developed for large off-grid renewable energy applications; Smart VHT Ni-MH modules, optimised for small off-grid renewable applications; and Intensium Flex Li-ion batteries, which are suitable for grid-connected PV systems and smart grid applications.

They provide the basis for specialised solutions defined by high reliability, low maintenance and optimum total cost of ownership (TCO) for a variety of current and future PV applications, including small standalone PV for signalling and lights, large off-grid PV in remote areas, grid-connected PV in residential and medium-size installations, smart grids and PV plants.

In the conference sessions, four papers will be presented by Saft's partners on the technical and economic aspects of Li-ion batteries incorporated into grid-connected PV systems; they will also reveal the first field test results.

The company is also presenting a paper describing the importance of the Smart VHT module for off-grid energy storage.

Sunica.plus batteries are based on Saft's pocket Ni-Cd technology.

They are optimised for use in PV applications.

The Sunica.plus design is claimed to ensure 20 years of reliable operation, even in harsh conditions such as the extreme temperatures found in deserts, with only minimal maintenance.

The company's new Smart VHT Ni-MH modules are designed to meet the needs of small off-grid PV systems.

Saft claims that they offer a better performance, a lower TCO, improved integration and a better environmental profile than traditional batteries.

The Smart VHT module enables the direct integration of smart electronics - such as seamless charge/discharge management, battery condition logging and an accurate state-of-health indicator - removing the need for separate PV controllers.

Saft's Intensium Flex modular Li-ion system is a new-generation battery technology aimed specifically at the more specialised renewable energy applications that are now starting to emerge.

It is provided in a rack-mount format, integrating battery management, protection and communication functions.

The modules are hot pluggable and maintenance free and can enable a battery system to be customised to provide the optimum battery configuration, with series strings of up to 720V and up to 16 parallel strings.

This provides Intensium Flex with the adaptability to be optimised for high-power rapid reserve as well as for traditional PV applications.

At this year's event, three oral papers will be discussed, covering Saft Li-ion batteries incorporated in grid-connected PV systems.

A poster presentation will cover the European 'GROW-DERS' (Grid Reliability and Operability with Distributed Generation using Flexible Storage) demonstration programme with Li-ion energy storage.

Find out more about this article. Request a brochure, download technical specifications and request samples here.

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