Department of Nuclear Energy

Planning & Economic Studies Section (PESS)

Capacity Building: PESS Energy Models

MAED: Model for Analysis of Energy DemandMAED-2 CMS-18

MAED evaluates future energy demands based on medium- to long-term scenarios of socioeconomic, technological and demographic development. Energy demand is disaggregated into a large number of end-use categories corresponding to different goods and services. The influences of social, economic and technological driving factors from a given scenario are estimated. These are combined for an overall picture of future energy demand growth.

The Computer Manual on Model for Analysis of Energy Demand (MAED-2) has been translated for French and Spanish speaking countries and published as English, French and Spanish Version.

WASP: Wien Automatic System Planning Package

WASP is the most widely used model in developing countries for power system planning (over 100 countries). Within constraints defined by the user, WASP determines the optimal long-term expansion plan for a power generating system. Constraints may include limited fuel availability, emission restrictions, system reliability requirements and other factors. Optimal expansion is determined by minimizing discounted total costs.

ENPEP: Energy and Power Evaluation Program

ENPEP, now used in approximately 60 developing countries, provides comprehensive evaluation of energy system development strategies. It includes modules:

FINPLAN: Model for Financial Analysis of Electric Sector Expansion Plans

In developing countries, financial constraints are often the most important obstacle to implementing optimal electricity expansion plans. FINPLAN helps assess the financial viability of plans and projects. It takes into account different financial sources - including export credits, commercial loans, bonds, equity and modern instruments like swaps - and calculates projected cash flows, balance sheet, financial ratios and other financial indicators. It is currently used in more than 20 developing countries.

MESSAGE: Model of Energy Supply Systems and their General Environmental Impacts

MESSAGE is used to formulate and evaluate alternative energy supply strategies for user defined constraints on, for example, new investment limits, market penetration rates for new technologies, fuel availability and trade, environmental emissions, etc. MESSAGE is extremely flexible and can also be used to analyze energy/electricity markets and climate change issues.

SIMPACTS: Simplified Approach for Estimating Impacts of Electricity Generation

SIMPACTS is a user-friendly, simplified approach for estimating the environmental impacts and external costs of different electricity generation chains. Designed for use in developing countries, it requires much less data, but produces comparable results, relative to more sophisticated data-hungry models. The SIMPACTS package covers:

Last updated: 7 April 2008