Owning and Operating Costs of Waste and Biomass Power Plants

Claverton Energy Conference, 23/24/25th October 2009

Dave Andrews, DAEC

Here are some broad brush head line figures for the owning and operating of a particular kind of advanced staged combustion power plant, obtained from a leading manufacturer, suitable for biomass, waste materials and waste wood. The process is essential combustion, but is referred to as gasification / combustion, meaning the material is first charred on a grate, with the off syngas being burnt in a separate adjacent and low level refractory chamber. The char is then burnt at a later stage as it moves down the great. This leads to greater burn up of fuel and lower emissions. The syngas combustion is maintained within the ceramic, and special gas flows prevent the contaminants in the gases fouling and degrading the ceramics.

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Renewable Community Energy request for european contacts

Subject: Renewable Community Energy – request from George Hay in the US. Claverton:   Are there any European “leaders” in community energy/sustainable energy concepts in England/Europe you could put me in contact with?   I’m seeing in CA: the RESCO project by Gerry Braun, methodology for municipalities to plan for distributed resouces, attract critical mass of investment […]

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Gas Turbines on the Isle of Man: A Case Study between the Manx Electricity Authority and Cranfield University. IDGTE paper at Cranfield, Thursday 19 March.

In the volatile energy market effective use of the available technological, energy and financial resources is now, more than ever, highly pursued. In a combined cycle power plant, gas turbines are the prime mover of power generation. Therefore, detailed understanding and monitoring of gas turbine performance, health condition and associated costs have a deep impact in the decision making process concerning the plant’s operational and maintenance strategy.

In this context, research collaboration between Manx Electricity Authority (MEA) and Cranfield University has been carried out since 2001 and a series of technologies and software have been and are still being developed at Cranfield University and some of them have been integrated into MEA Combined Cycle Gas Turbine Power Plant in Pulrose, Isle of Man. During this constructive and successful collaboration period, the University has been fortunate to acknowledge the industrial needs and make significant academic contributions through ongoing research projects jointly supported by both MEA and EPSRC. On the other hand, MEA has valued the complexity of asset management concerning the gas turbine and the combined cycle, therefore enhancing its trading and operational capabilities through the application of developed performance, diagnostic, trading and economic analysis software.

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KIV – Biomass and waste to energy district heating and power generation plants

KIV commenced the commissioning a new gasification EfW CHP and district heating scheme in September 2008. The plant has been designed to environmental standards above and beyond the EU Waste Incineration Directive (WID), which also incorporates Best Available Technique (BAT), lodged with the EU BREF documents office. The plant will be an EU ‘showcase’ project, which incorporates a presentation room for coach parties of visitors.

Approximately five years ago, KIV commenced a joint development for the gasification EfW CHP plant with Celje town council. The plant has an 18MWth input capacity for <38,000 tpa of a mixed fuel (80% RDF + 20% Sewage Sludge), with an average CV of 13.6MJ/kg, based on a guaranteed 8,000 hrs/annum availability. The scheme is connected to an existing District Heating scheme, which has a 110oC flow temperature. The scheme is ‘heat led’ and therefore produces a reduced amount of gross power at 2.1 MWe. If the scheme was ‘electricity led’, it would produce 3.8MWe of gross power.

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Complete 7 MWe Deutz ( 2 x 3.5MWe) gas engine CHP power plant for sale and re-installation in the country of your choice. Similar available on biogas / digester gas

1. PROJECT SCOPE

The supply, construction and commissioning of a 7 MWe power station first commissioned in September 2000 but mothballed in November 2001. Now available for immediate relocation – 50hz utiltiy.

Basic scope of work is to dismantle in Europe, pack, ship, re-erect and commission a 7MWe gas fuelled power station. A Turnkey price can be provided subject to site survey, civil and electrical infractructure requirements.

The available equipment consists of two DEUTZ TBG632V16 gensets powered by natural gas and all the necessary ancillary equipment including heat recovery and transfer plant, controls, switchgear, power cables to the 6.6kV board and small wiring within the station.

1. PROJECT SCOPE

The supply, construction and commissioning of a 7 MWe power station first commissioned in September 2000 but mothballed in November 2001. Now available for immediate relocation – 50hz utiltiy.

Basic scope of work is to dismantle in Europe, pack, ship, re-erect and commission a 7MWe gas fuelled power station. A Turnkey price can be provided subject to site survey, civil and electrical infractructure requirements.

The available equipment consists of two DEUTZ TBG632V16 gensets powered by natural gas and all the necessary ancillary equipment including heat recovery and transfer plant, controls, switchgear, power cables to the 6.6kV board and small wiring within the station.

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38% HHV Caterpillar Biogas Engine Fitted to Long Reach Sewage Works

A Caterpillar bio-gas engine was as fitted to Long Reach Sewage Works, operated by Thames Water Utilities. This is a V16 engine running at 1500 rpm, on biogas which is typically 60 % methane. Output about 1150 kWe electrical, 1.4 MW heat which heats the digesters. Electrical efficiency is about 38% LHV, thermal efficiency. Life cycle maintenance costs about 0.9 /kWh. Caterpillar makes about 50 units per day of this basic engine in either gas or diesel (1.8MW) format at its US factory in Lafayette Indiana equivalent to some 23 GWe of capacity per annum. Further info

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