Table of Contents

Cogeneration & On-Site Power Production

05/01/2011
Volume 12, Issue 3

  • Features

    • The potential for on-site generation in European residential markets
      One sector for on-site power with considerable potential for growth is the residential energy services market in Europe, where micro-CHP, PV and small wind projects could thrive. Jon Slowe summarizes the results of a study to assess this potential, and the role of utilities in moving it forward.
    • Birmingham uses CHP and trigeneration in district energy scheme
      Since its conception in 2003, the Birmingham District Energy Scheme has continued to expand and play an increasingly important role in Birmingham City Council’s climate change strategy, which aims to reduce carbon dioxide emissions by 60% by 2025. Simon Woodward writes.
    • Flexible cogeneration balancing heat and power demands
      Utilities in many parts of the world are turning to gas-fired combined cycle cogeneration plants to cut emissions through increased plant efficiency and better fuel utilization. To address this market need, Alstom has optimized its KA26 combined cycle unit to offer unparalleled flexibility for both heat and power production, as Christian Bohtz writes.
    • Operate, maintain and upgrade for sustained efficiency
      Operating efficiency is of vital importance to on-site power and cogeneration plants and, once a plant is commissioned, it’s down to operational patterns, service and maintenance practices – and component upgrades where necessary – to maximize and sustain efficiency. This article rounds up some recent accounts in this area.
    • Why industrial-scale cogeneration is right for the US
      The combination of a reasonably large ‘spark spread’ and relatively low natural gas prices for now and the future helps to make the business case for cogeneration schemes at industrial and commercial sites in the US, according to analysis by David C Oehl at Maven Power.

  • Project Profiles

    • Singapore generator adds cogeneration to power plant
      Singapore’s PowerSeraya has added a cogeneration facility to its original power generation capability in a move towards creating a fully-integrated energy hub. Edward Henry Taylor, Ponnuchamy Veerachamy, Shen Youwang, Shih Chi Lai and Mohd Rafid Bin Ibrahim report on the execution of the project.
    • US healthcare system heads towards energy independence
      A Wisconsin-based healthcare operator that already uses organic brewery wastes to fuel a CHP unit is now partnering with a landfill site to pipe waste gas for more CHP plant at a hospital. With other plans for on-site wind and geothermal energy, the aim is for total energy independence. Cliff Haefke and Corey Zarecki report.
    • One large engine replaces three for German biogas CHP operators
      After operating biogas-fuelled CHP systems for a decade using agricultural waste, GF-Bio-Energie has now replaced its three engine-based units with one 1.2 MWe engine from MTU Onsite Energy, and redeployed the smaller units to provide heat and power to buildings in the local town. Christoph Bendzko tells the story.
    • US treatment plant converts high-strength waste to energy
      Operators of a US wastewater treatment plant have seen and acted on the opportunity to import extra dairy industry waste in order to increase power generation capacity on site. The project has delivered benefits to all parties, as George Bevington, Robert E Ostapczuk and Paul C Bassette report.

  • Regulars

    • Operational flexibility and the growth of biogas
      CHP and decentralized energy schemes are necessarily flexible, serving variable on-site loads as opposed to merely pumping power into a grid and, in the case of CHP at least, providing energy in two (sometimes three) different forms. The ability to operate in flexible, load-following patterns is essential.
    • The safe, decentralized alternative to nuclear power
      The so-called nuclear renaissance seemed to be in full swing, with a number of new proposals for nuclear plants on the drawing board around the world. However, all of this changed on 11 March with the earthquake that shook Japan and the nuclear industry.
    • News
    • WADE pages
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