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CV - Timothy Wyatt

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NAME : Timothy Wyatt

BORN : 14 August 1946 Wrexham, N. Wales

NATIONALITY : British

PROFESSIONAL QUALIFICATIONS :

1965 - 1969 University of Edinburgh, Scotland : Department of Civil Engineering

1969 B.Sc. (Hons.) in Civil Engineering

Member of the British Hydrological Society and Main Committee Member (1993-95).

Occasional lecturer in the application of dynamic programming techniques for optimising the planning and operation of water resource systems : Department of Civil Engineering, University of Newcastle upon Tyne. top


PROFESSIONAL EXPERIENCE :

1993 to date Director, WATER SYSTEMS CONSULTANTS Ltd

Henley-on-Thames & Bristol, England top

1983 to date Director, POWER & WATER SYSTEMS CONSULTANTS Ltd

Henley-on-Thames, Oxon., England top

2002-04 Further development of MOSPA model for simulating operation of the River Dee system (for United Utilities Water and the UK Environment Agency - Wales). top

2002-04 Further development of MOSPA models for simulating operation of the Integrated Water Resource/Supply system operated by United Utilities Water in the North West of England (for United Utilities Water and the UK Environment Agency - North West). top

2002 Updating of computer program SYSIM for simulating and optimising the operation of integrated water resource (irrigation) and hydro-thermal power supply systems. Development of SYSIM Run-Time Environment System (SYSIME). (World Bank funded study for the Ceylon Electricity Board, Sri Lanka). top

2001- Development of Windows based computer program AQUARIUS, for simulating and optimising the operation of integrated water resource and power supply systems. Interactive screen input of system components, topography and data. Linear Programming optimisation of reservoir releases, river flows, hydro and thermal plant outputs and, optionally, transmission line flows within each time step. Time step can be daily, weekly or calendar monthly, with up to 24 load dispatch blocks per time period. Automatic database (ACCESS) storage of simulation results. Comprehensive facilities for graphical display of results as time series or in 'mimic' diagram form. Module for the optimisation of long-term system operating policies based on stored water values under development. top

2001- Testing of the computer program DECOMP to be used for determining sub-market weekly ‘spot’ prices within the integrated Brazilian hydro-thermal system. Formulation of technical tests to be performed and analysis of results obtained. Evaluation of weekly flow generation model PREVIVAZ. (Administrator of Services to the Wholesale Energy Market [ASMAE], in association with PricewaterhouseCoopers) top

2000 Analysis of problems encountered during October 2000 in determining sub-system water values for the integrated Brazilian power generation system using computer programs NEWAVE and NEWDESP. (Administrator of Services to the Wholesale Energy Market [ASMAE], in association with PricewaterhouseCoopers) top

2000 Testing of the computer program NEWAVE used for determining sub-market monthly ‘spot’ prices within the integrated hydro-thermal system of Brazil. Formulation of technical tests to be performed and analysis of results obtained. Evaluation of monthly synthetic flow generation model GEVAZP. (Administrator of Services to the Wholesale Energy Market [ASMAE], in association with PricewaterhouseCoopers) top

2000 Installation of PWSC's MOSPA/MOSES computer program package for simulating and optimising the operation of water resource and supply systems on client computer systems, and training personnel in its applications and usage (UK Environment Agency – Wales) top

1999 Development of Windows based computer program EPSIM for the definition, simulation and evaluation of alternative power supply system development plans. Monthly time interval for all operating and investment cost data, and component additions/retirements. Probabilistic or deterministic Linear Programming or Integrated Load Duration Curve (Jacoby) methods used to calculate expected operating costs and supply reliability for each month of the planning period. Optional consideration of transmission networks, up to 5 'hydrological conditions' and WASP compatible demand data input. Economic analysis performed for sets of discount and fuel price escalation rates, and shadow prices. Automatic database (ACCESS) storage of expansion plan evaluation results, and comprehensive facilities for graphical display of results as time series or in 'mimic' diagram form. Module for 'Monte Carlo' definition, evaluation and hence optimisation of system development. EPSIM is particularly suitable for comparing alternative IPP proposals with different plant capacities, lifetimes, fixed and variable energy supply costs and minimum load factors (‘take or pay’ constraints). top

1999 Development of on-line ‘help’ systems for the MOSPA/MOSES computer programs for simulating and optimising the operation of water resource and supply systems (For North West Water Ltd. and the Environment Agency – North West Region). top

1996-98 Restructuring of the Brazilian Power Sector : Review of power sector investment plans and methodology employed in planning the expansion and operation of integrated hydro-thermal generation systems. Formulation of proposals for computer modelling and optimisation requirements for future operation of privatised national power generation system and marginal cost determination. Formulation of draft Grid Procedures covering long, medium and short-term operations planning; advice on information transfer and database requirements (World Bank funded study, in association with PriceWaterhouseCoopers) top

1997-98 Sri Lanka : Critical appraisal of Ceylon Electricity Board’s power sector investment plans and methodology employed in planning the expansion and operation of integrated hydro-thermal generation system. (Asian Development Bank funded study, in association with Electrowatt Engineering Services) top

1997-98 Turkey : Power Sector Reform Programme : Review of power sector investment plans and methodology employed in planning the expansion and operation of integrated hydro-thermal generation systems. Formulation of proposals for computer modelling and optimisation requirements for future operation of privatised national power generation system and associated databases. (World Bank funded study, in association with Coopers & Lybrand) top

1996-97 Development and application of MOSPA simulation model of the integrated water resource and supply systems of North West Water Ltd. Modelling of River Dee regulation system (North Wales), Lake Vyrnwy, and the interconnected Southern and Northern Command Zone sub-systems. Optimisation of system operating policies for different demand scenarios [For North West Water Ltd. & the Environment Agency - North West Region, UK] top

1996-97 Installation and training in the use of the MOSPA Run-time Environment System (MOSES) on client PC's. [For North West Water Ltd. and the Environment Agency - North West Region, UK] top

1994-96 Development of MOSPA run-time environment system (MOSES) for the interactive creation and editing of input data files; viewing of output files, graphical and tabular presentation of results; creation of system schematics; database storage and retrieval of associated information. [For the National Rivers Authority - North West Region] top

1994-95 Development of a simulation model of the Lancaster water supply system and application of the MOSPA package to derive optimised operating policies. [For North West Water Ltd, England] top

1992-94 Enhancement of the MOSPA program suite for the optimisation of medium-term operating policies and the production of abstraction schedules [For North West Water Limited, England] top

1992-94 Simulation and optimisation analyses associated with the possible redeployment of Lake Vyrnwy as part of a national water resources strategy [For the National Rivers Authority and North West Water Limited, England] top

1992-93 Implementation of the MOSPA program suite on IBM RS/6000 computer system running under AIX (UNIX) operating system, and development of interface to a corporate data base [For North West Water Limited, England] top

1992 Implementation of the MOSPA program suite on PC compatible computer, development of generalised water resource system models and user training [For the National Rivers Authority - North West Region, England] top

1992 Vision 2000 Information Technology Project. Appraisal of water resources modelling requirements and advice on future strategy. [For North West Water Limited, England] top

1991-93 Enhancement of the MOSPA program suite to enable the quantitative assessment of drought management measures, and their incorporation in operating policies consistent with achieving Levels of Service as defined by OFWAT. [For North West Water Limited, England] top



1990-96 Provision of computer software for managing flows in the Sanaga River Basin, Cameroon. Optimising the medium and short-term operation of three reservoirs to provide regulated flows for hydropower generation, taking into account time-of-travel and channel routing effects. [For the Societe Nationale D'Electricite du Cameroun - SONEL]. top

1989-91 Economic Operation of the Southern Command Zone system. Derivation of operating policies to optimise conjunctive operation of reservoir, river abstraction and groundwater resources, existing and potential system configurations. [For the North West Water Authority, England] top

1988-89 Determination of Marginal Operating Costs for the Northern Command Zone system; derivation of operating policies for a range of demand and supply reliability levels. [For the North West Water Authority, England] top

1986-87 Economic Operation of the Lancashire Conjunctive Use Scheme; optimisation of seasonal operating policies, based on reservoir levels, to minimise pumping and treatment costs while maintaining prescribed reliability of supply. [For the North West Water Authority, England] top

1986-88 Implementation, development and application of a computer simulation program to model major water resource developments in Sri Lanka used for power production and irrigation. [GTZ funded Masterplan for Electricity Supply, Sri Lanka] top

1986-87 Optimal Operation of the Kinda Multi-Purpose Project, Burma ; derivation of seasonal operating policies to maximise irrigation and hydropower benefits. [For Lahmeyer International] top

1985-86 Economic Operation of the Lake District Water Resource System; optimisation of seasonal operating policies, based on reservoir levels, to minimise pumping and treatment costs while maintaining prescribed reliability of supply. [For the North West Water Authority, England] top

1985 Identification, appraisal and selection of available computer models for determining marginal production costs of a hydro-thermal generation system [for the North of Scotland Hydro-Electric Board] top

1983-85 Development of the MOSP computer program suite.

The methodology combines a detailed simulation model of the system to be analysed with a generalised stochastic Dynamic Programming algorithm to optimise long term operating policies. top



1981 – 1983 INDEPENDENT CONSULTING ENGINEER

Power and Water Systems

Formulation of Modular Optimisation/Simulation Program Suite (MOSP), a suite of computer programs to optimise medium-term operating policies for water resource and hydro-thermal power generation systems with significant water storage facilities.

Development of a generalised simulation program (SYSIM) for modelling the operation of hydro-thermal power generation systems.

Preparation of technical offers for 'Burundi Electricity Masterplan' and 'Bangladesh Power System Masterplan' [For Lahmeyer International]

Technical and Economic Evaluation of the Santa Maria II hydroelectric scheme (68 MW), Guatemala. [For Lahmeyer International] top



1974 - 1981 LAHMEYER INTERNATIONAL GmbH, Consulting Engineers, Frankfurt am Main, Federal Republic of Germany, Senior Engineer, Division of Electrical Networks and Energy Planning top 

1981 Review of mathematical models for energy planning at the regional and national level. top 

1979-80 Estudio del Equipamiento del Sistema Electrico Nacional, Uruguay

Project manager with overall technical and organisational responsibility, the principal study activities being :

· Electricity demand forecasting at the national level, sectoral, seasonal and macro-economic trends;

· Hydrological studies to determine representative flow sequences at existing and potential hydropower sites, and estimation of design droughts, floods and sediment.

· Development of computer program to model the Uruguayan hydro-thermal generation system and optimal forms of operation, including hydraulic interaction, load dispatch optimisation, system operating policies, supply reliability in terms of penalty functions and consumer restrictions, pumped storage plants, bi-national operation of 'run-of-river' plant and the import and export of electrical energy.

· Establishment of a thermal power plant catalogue including gas turbine, combined cycle, conventional steam (oil and coal) and nuclear plant, including technical and cost parameters. Identification, preliminary design and cost estimation of potential hydropower developments, including low head (bulb turbine) and pumped storage schemes.

· Establishment, evaluation and comparison of alternative equipment plans featuring thermal and hydroelectric plants and interconnection with neighbouring countries. Economic appraisal and sensitivity analysis with respect to discount rates, demand forecasts, fuel prices, penalty costs for shortfalls in supply and unit prices for the import and export of electrical energy.

· Recommendations regarding optimum equipment schedules, alternative fuels, supply reliability criteria and the exploitation of non-conventional energy resources. top



1976-79 Plan Maestro de Electrificacion, Peru

Senior hydrologist and water resource engineer

· Design and establishment of hydrological data bank at the national level on mini-computer system. Adjustment and extension of historic streamflow and rainfall records; statistical studies of relationships between physical and hydro-meteorological parameters.

· Estimation of the national hydroelectric potential, and creation of a river system and morphological data bank.

· Evaluation of existing and potential hydropower projects. top



1976 Plan Maestro para el Desarrollo del Sistema Electrico de Nicaragua. Hydrological and water resource systems analysis

· Pre-feasibility Studies for the Xalala, Serchil, Chulac and El Carmen Hydropower Projects, Guatemala. top



1974-76 Plan Maestro de Electrificacion Nacional, Guatemala

Hydrologist and systems analyst

· Evaluation of theoretical and technical hydropower potential of the country. Design and establishment of computer based hydrological data bank. Development and application of computer programs for hydrological analyses, including extension of historic streamflow sequences, estimation of design floods and analysis of low flow sequences. Development of methodology for the rapid estimation of energy production associated with hydroelectric projects. Derivation of ranking indices for comparing hydro and thermal power projects. top



1974 THE CONFEDERATION OF BRITISH INDUSTRY (CBI)

London, England : Technical Adviser, Fuel and Energy

· Formulation and analysis of energy policy at national, EEC and international level, with emphasis on industrial use and North Sea oil production. top



1969 - 1973 THE WATER RESEARCH ASSOCIATION

Medmenham, Bucks. England. [now the Water Research Centre]

Senior Scientific Officer, Economics Group

· Development of computer programs for the simulation and optimisation of water resource systems using mathematical programming and operations research techniques. top


LANGUAGES :

English : mother tongue
Spanish : good working knowledge
French : basic knowledge
Portuguese : reading ability
top

OVERSEAS PROFESSIONAL VISITS AND RESIDENCE :

Brazil, Cameroon, Cyprus, Greece, Guatemala (1974-76), Italy, Nicaragua, Peru (1976-79), Philippines, Sri Lanka, Turkey, Uruguay (1979-80), USA, Venezuela. top

COMPUTER EXPERIENCE :

Programming in FORTRAN and MS Visual Basic. IBM and CDC mainframes; Hewlett Packard, Data General and CADMUS (Unix) mini-computer systems; IBM PC compatibles, IBM RS/6000 AIX (UNIX). Spreadsheet, Graphics, Word Processing and Database (MS OFFICE, DBASE, Visual Objects, VB/ACCESS) Packages. top

PAPERS AND PUBLICATIONS :

"Some Conjunctive Desalination Studies in the UK". Water Resources Bulletin, September 1971. Co-author.

"Streamflow Regulation by Artificial Recharge Fed from Upstream Surface Storage : Derivation of Control Rules". IASH Symposium, Warsaw, Poland, 1971. Principal author.

"An Integrated Model for Water Systems". Symposium on Computers in Water Systems, Reading, England, 1973

"Pumping Policies in Water Supply". IFAC Symposium, 1973. Co-author.

"Planning and Operational Studies in the Integrated Use of Desalination : Case Studies for Cyprus and Jersey". Published in 'Desalination', 1974. Co-author.

"Primera Estimacion de la Energia y Potencia de Proyectos Hidro-electricos Individuales e Interconectados". Seminario Interamericano de Hidroelectricidad, Venezuela, 1977.

"Bancos de Datos - Su Rol en Estudios Tipo Plan Maestro". Simposio Planes Maestros de Electrificacion, Lima, Peru, 1978.

"Assessing Hydropower Potential in Developing Countries". IWRA Third World Congress, Mexico City, 1979 and published in 'Water International', September 1979. Principal author.

"Reservoir Storage Use for Hydropower Production Considering Costs of Back-up Capacity and Supply Restrictions". Symposium on Surface Water Impoundments, Minneapolis, USA, 1980. Principal author.

"Electricity Generation Planning for Uruguay". 'Water Power & Dam Construction', June 1986.

"Use of a Dynamic Programming Technique for Optimising Operation of a Regional Water Resource System". 'AQUA - The Journal of the International Water Supply Association', No. 5, 1987. Co-author.

"Medium-Term Operating Policies for Hydro-Thermal Systems". 'Modern Power Systems', January 1988. Principal author.

"System Simulation and Optimisation - Useless, Useful or Essential ?" Presented at the Sixth IWRA World Water Congress on Water Resources Ottawa, Canada, May-June 1988. Principal author.

"Operational Aspects and Generation Expansion Planning of Hydro-Thermal Systems". Presented at the Third Regional GTZ Symposium on Long-Term Power System Planning, Colombo, Sri Lanka, 19-24 September 1988.

"Derivation and Application of Medium-Term Operating Policies for the Northern Command Zone System of North West Water (UK)". Presented at the IAHS Baltimore Symposium, May 1989. Co-author.

"The Development and Use of Medium-Term Policies for Operation of a Major Regional Water Resource System". Presented at the Second BHS National Hydrology Symposium, Sheffield, 4-6 September 1989. Co-author.

"Computer Software for Optimising the Releases from Multiple Reservoirs Operated for Flow Regulation". Presented at the British Dam Society Conference on Water Resources and Reservoir Engineering, Stirling, 24-27 June 1992. Principal author.

"Drought Management Measures and their Incorporation within Water Resource System Operating Policies". Presented at the Fourth BHS National Hydrology Symposium, Cardiff, 13-16 September 1993. Principal author.

"An Integrated System for the Modelling and Management of Water Supply Systems". Proceedings of the Second European Conference on Advances in Water Resources Technology and Management. Tsakiris & Santos (eds) 1994 Balkema. Principal author.

"Evaluating the Impact of Drought Management Measures within Complex Water Resource Systems". Proceedings of the Second European Conference on Advances in Water Resources Technology and Management. Tsakiris & Santos (eds) 1994 Balkema. Principal author.

"Modelling the Possible Re-Deployment of Lake Vyrnwy". Analytical Techniques for the Development and Operations Planning of Water Resource and Supply Systems. Proceedings of BHS National Meeting, November 1994 and published as BHS Occasional Paper No. 4. Principal author.

"An Integrated Approach to Modelling Water Resource and Supply Systems". Analytical Techniques for the Development and Operations Planning of Water Resource and Supply Systems. Proceedings of BHS National Meeting, November 1994 and published as BHS Occasional Paper No. 4. Principal author.

"An Integrated Simulation and Dynamic Programming Approach for Evaluating the Performance of Complex Water Resource Systems and Optimising Operating Policies : Methodology and Applications"

Paper presented at IAHR International Workshop on "Drinking Water Systems Characterised by Different Sources : Design, Management and Monitoring of Quality of Supplied Waters". Turin, Italy, September 1996. Author. top

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PROFESSIONAL QUALIFICATIONS
PROFESSIONAL EXPERIENCE
LANGUAGES
OVERSEAS PROFESSIONAL VISITS AND RESIDENCE
COMPUTER EXPERIENCE
PAPERS AND PUBLICATIONS

Timothy Wyatt

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Victoria Dam (Sri Lanka)
Traditionally, power sectors across the Asia region were monopolies which were generally state-owned. During the last decade this situation has changed significantly, and power sectors are being restructured and reformed in order to create competition, attract private investment, and improve operational efficiency. Sri Lanka is no exception, where they have identified a need to develop a policy package in keeping with the current trends.

Cost of electricity is a key element in attracting foreign investment into the country for its economic development. Further, electricity has a direct bearing on the competitiveness of local industry in international markets. Therefore, the power prices should be comparable and have a competitive edge in relation to prices elsewhere in the region including South Asia and South East Asia.

The Ceylon Electricity Board use SYSIM from PWSC for simulating and optimising operation of the integrated Sri Lankan hydro-thermal power generation and irrigation supply system to help achieve this goal.



With a power generation installed capacity of some 79 GW, larger than the UK, Brazil is one of the largest electricity markets in the world. It is by far the largest in South America, with the Brazilian total primary energy consumption being twice as large as the aggregated figures for Argentina, Bolivia, Chile, Paraguay and Uruguay. There are approximately 50 million customers and total consumption has increased from 70 to 300 TWh in the last 20 years. Currently, some 95% of the Brazilian households have access to electricity.

During 2001 Brazil experienced a major electricity supply crisis triggered by a severe drought. The hydroelectric power plants that had generated 90% of Brazil’s electricity supply were left with dry reservoirs. However, the Government’s rationing programme successfully minimised the social and economic impact of the crisis. Since then, rainy seasons have been plentiful and the reservoirs returned to comfortable levels.

The new Government inaugurated in January 2003 is proceeding with the re-evaluation of the power sector policies initiated by the last administration after the 2001 crisis. The target is to solve regulatory bottlenecks, and overcome investment problems in the sector. As part of all this, PWSC's has been working in association with PriceWaterhouseCoopers to develop simulation and optimisation models of the countries combined power & water systems to support development of future policy and practice.


River Dee, Wales

The River Dee is a 70 mile (110 km) long river, which rises in the hills above Llanuwchilyn in Merioneth (Gwynedd) Wales, then passes through Bala Lake, over the man-made Horseshoe Falls and through Llangollen. East of Llangollen, Thomas Telford's Pontcysyllte Aqueduct, of 1805, carries the Shropshire Union Canal 120 feet overhead. At Farndon the river crosses into England and then passes through Chester. Below Chester, the river flows along an artificial channel, excavated when Sealand and Shotton were reclaimed from the estuary. This 'canalised' section runs in a straight line for five miles and passes beneath two road bridges at Queensferry. The first is a modern fixed cable-stayed bridge, the second, the Queen Victoria Jubilee Bridge, is of the rolling bascule type. A mile further on is the Hawarden railway bridge, originally constructed as a swing bridge but now never opened, carries the Chester - Wrexham line over the river. The name derives from the Celtic name for the river (Afon Dyfrdwy).

United Utilities and the Environment Agency use MOSPA from PWSC for simulating operation of the River Dee system.


 

 

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Water Resource & Hydro-Thermal Power Systems Modelling - Optimization of Large-Scale Hydropower System Operations - Power Generation Optimisation