Simplified Approach for Estimating Impacts of Electricity Generation (SIMPACTS)

From Open Energy Information

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: health, agricultural, forest and materials damage, airborn and water pollution, solid waste, and different generating technologies.

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This tool is included in the Development Impacts Assessment (DIA) Toolkit from the LEDS Global Partnership.


Provides a first-order assessment of the external costs of operating fossil fuel-based, nuclear, hydro, or other power plants, taking into account emissions, dispersion, exposure risk and route, physical impact, and overall damages.

When to Use This Tool

This tool is most useful for development impacts assessments focused on:

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Learn more about the topics for assessing the impacts of low-emission development strategies (LEDS).

Key Outputs

Uniform world model estimate for total exposure, quantification of health impacts, monetization of impacts, estimates adjusted for stack height, Gaussian plume, distribution.

How to Use This Tool

Training Available
Special configurations require training and additional setup assistance

Level of Expertise

Key Inputs

Pollutant emission rates, regional population density, source location, stack characteristics, local metrological data

  1.  "Overview of IAEA PESS Models"