Cogeneration & On-Site Power Production Magazine, Volume 10 Number 2 March - April 2009

About Cogeneration & On-Site Power Production
Cogeneration & On-Site Power Production focuses on the clean and highly-efficient generation of power through decentralized generation and combined heat and power for an industrial, utility and governmental readership. The magazine is published in association with the World Alliance for Decentralized Energy (WADE).


contents volume 10 number 2 march–april 2009
Cleaner, more power and heat,
less fuel … today’s reciprocating
engines must deliver
Developments in the design
and operation of gas, diesel
and dual-fuel reciprocating
engines continue (though slowly),
with improvements to efficiency
and lower atmospheric emissions
being the main aims.
By James Hunt
23 PERSPECTIVE
Local, distributed, low-carbon
supplies – different routes
towards district energy systems
How can pressures towards
low-carbon energy supplies be
used to deliver the increased
uptake of distributed generation?
The contrasts in historical
approaches and policies in the
UK and Denmark are compared.
By John Piggott
17
FEATURES
Cover photograph: Microturbines installed at the
Ronald Reagan Presidential Library, Montana, US
23
REGULARS
6 FROM THE EDITOR
8 COMMENT
11 NEWS
A round-up of news from around
the world
66 WADE PAGES
WADE in action – global news,
events and new appointments
71 DIARY
An international listing of
relevant conferences, meetings
and exhibitions
72 ADVERTISERS’
INDEX

39
Lessons learned from a decade
of CHP in California
The US state of California’s 2001
programme to support the
installation of new distributed
energy plants has so far resulted
in over 1200 new facilities,
including systems based on
turbines, engines and fuel cells.
By George Simons
From dispatchability to
stability – battery energy
storage is essential for
decentralized electricity grids
Local, decentralized energy
storage permits flexibility in power
generation and use. This feature
concentrates on battery
technology as used with smallscale
local generation systems,
both off-grid and grid-connected.
By Michael Lippert
ORC recovering industrial heat –
power generation from waste energy
An ‘Organic Rankine Cycle’ turbine can
be employed to convert ‘waste’ heat
streams in many industrial processes,
to electrical power for on-site use. How
one company is making electricity from
‘free’ fuel at plants across Europe.
By Riccardo Vescovo
Distributed generation potential in
the German residential sector
Estimating the likely growth of
decentralized generation for homes in
Germany requires careful assessment.
Looking ahead, mini/micro CHP plants
based on engines and fuel cells seem
the likely winners.
By Christoph Konrad, Elisabeth Obé
and Hellmuth Frey
FEATURES continued…
Expert service, operation and
maintenance – the key to
maximizing gas turbine
performance
Operators of on-site power plant
based on gas turbines will know
that expert service and
maintenance is essential to
keeping plant running and
availability and performance high.
This article rounds-up the
capabilities of some key players
in the industry.

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