Modest : an energy-system optimisation model applicable to local utilities and countries. J-0445. Energy.

Henning, Dag.

1997

SEPARATA
639

MODEST, an energy-sytem optimisation model is described. It has been applied to a typical local Swedish electricity and distric-heating utility and to the national power system. Present and potential installations and energy flows should be considered and their best combination can be obtained through optimisation. MODEST uses linear programming to minimise the capital and operation cost of energy supply and demand-side management. Seasonal, weekly, and diurnal variations of, for example, demand, cost, and capacities are considerer. MODEST may be used to decide which investments to make, the dimensioning of new instalations, and the operation of all sistem components. The municipal utility under study should now expand its heat producction using woodchips. Electricity exportor nuclear phase-out will probablyraise the Swedish electricity prices. In this case, cost minimisation is achieved by introducing combined heat and power (CHP) production in the municipality. Fossil fuels should be used in the cogeneration plant at current taxation levels but biofuels are favourable if higher environemental fees are imposed for CO2 emisions. Biomass capacity expansion could decrease local CO2 emision by 80 por ciento. Efficiency improvements for electricity use have robust profitability at high electricity prices. The Swedish electricity demand may be satisfied without nuclear power and fossil fuels throgh massive biomass use, wind power-supply, and energy conservation..

Presenta diagrs., gráfs y tbls.

SUECIA; MODEST; MODELOS ENERGETICOS; USO RACIONAL DE LA ENERGIA; SIMULACION; ENERGIA; ADMINISTRACION DE LA DEMANDA; EMPRESAS ELECTRICAS; EMPRESAS DE SERVICIO PUBLICO; DATOS ESTADISTICOS;