external cost of f ossil a nd n on fossil e nergy s ystems the case of the czech republic
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External Cost of F ossil A nd N on-fossil E nergy S ystems The Case of the Czech Republic. Milan ŠČASNÝ & Jan MELICHAR Charles University Environment Center, Prague NEEDS FORUM 2 “Energy Supply Security” Krakow, 5-6 July 2007. Content. Paper Motivation and Its Goal Methodology

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external cost of f ossil a nd n on fossil e nergy s ystems the case of the czech republic

External Cost of FossilAndNon-fossil EnergySystemsThe Case of the Czech Republic


Charles University Environment Center, Prague

NEEDS FORUM 2 “Energy Supply Security”

Krakow, 5-6 July 2007

  • Paper Motivation and Its Goal
  • Methodology
  • External Costs Estimates
    • fossils and non-fossils used in power sector
    • non-energy sectors
  • (Not only) Concluding Remarks
  • Research on the ExternE in CEE region
  • Technology’s attributes important for the choice
    • internal costs
    • energy supply security
    • external costs (other than security of supply)
  • External costs of energy generation from fossil fuels (200 € per capita) or
    • 2% HDP in Hungary
    • 2.5% HDP in Czech Rep
    • 5% HDP in Poland
  • Technologies’ ranking
    • which technology outperform its substitutes?
    • what are the external costs of (some) renewable energies and fossil plants?
    • factors and assumptions that influence the external cost values
  • Document uses of the ExternE method for more comprehensive technology impact assessment
externality as a source of market failure
Externality as a source of market failure
  • deviation from the first-best neoclassical world in which the price mechanism takes care of socially (Pareto) optimalresource allocation
    • signal failure  market prices no longer reflect social costs (or benefits)
  • „An external effect exists when an actor’s (the receptor’s) utility (or profit) function contains a real variable whose actual value depends on the behaviour of another actor (the supplier), who does not take these effects of his behaviour into account in his decision making process“ (Baumol and Oates 1988; Verhoef 2002) and “… the effect produced is not a deliberate creation but an intended or incidental by-product of some otherwise legitimate activity“ (Mishan 1971)
  • „…externality arises when the social or economic activities of one group of persons have an impact on another group and when that impacts is not fully accounted, or compensated for; by the first group“ (ExternE; EC 2003)
externe method
ExternE method
  • impact assessment (e.g. health risk), not of pressures (e.g. emissions of pollutants)
  • damage associated with certain process depend
    • site (location)
    • technology
    • time
  • preference structure of the population
    • how much are you willing-to-pay for avoiding adverse impacts ?
      • market price (e.g. building materials, crop, medical treatment of illness, …)
      • non-market valuation (e.g. dis-welfare due to illness, premature death, landscape amenities, noise, ….)
  • impact assessment at eachspatial level, i.e. local, regional, hemispheric, global effects
  • life cycle impacts considered particularly, but not only, for renewables and nuclear energy

bottom-up approach for the complex pathways>

‘impact pathway approach’

impact pathway approach



Impact pathway approach





externe impacts categories

particulate matters

SO2, NOx

CO2 (CH4)



trace poll. (HM, dioxines)



ExternE> Impacts categories
  • Impact category
  • Human health
    • morbidity
    • mortality
    • dvlp. impairment
  • Building materials
  • Crops
  • Climate change
  • Forests
  • Natural ecosystems
  • Visibility
  • Cultural heritage
external costs calcualtions
External costs calcualtions
  • Model assumptions, i.e. DRFs, monetary values, modelling (ExternE methodology 2005-update)
  • EcoSense v4.1 software tool
  • 2003 emission and reference technology data
  • external costs mostly of process, i.e. energy generation in the plant
power sector in the czech republic
Power sector in the Czech Republic
  • Electricity generation Heat generation
  • 83 TWh(35% in CHP’s)143 PJ (75% in CHP’s)
CEE fossil power plants external costs in €c/kWh

Note: Czech Republic and Poland (2002), Hungary (2003) and Romania (2004)

biogas electricity production technology parameters externalities
Biogas> electricity productiontechnology parameters& externalities
  • compare with>
    • natural gas  1.0-1.5 €c/kWh
    • hard coal  2.8 €c/kWh
    • brown coal  3.2-4.6 €c/kWh
    • lignite  5.8 €c/kWh
wind power technology parameters externalities
Wind power> technology parameters& externalities

Source: ECLIPSE Project

  • Caveat>
  • only impacts of up-stream processes included
  • impact due to noise and landscape amenities might likely increase damage
Bio-fuels> external costs of production and use as propellant€ per 100 vehicle-km (passenger EURO III with 1.2 to 2.0 l)

Nafta – diesel venkov – ruralareas

B30 – 30%+ of biodiesel město špička – urban in peakhours

Benzín – petrol

E5 – 5% bioetanolcontent

Source: Melichar andMáca 2006

bio fuels used as propellants external costs of production ton gj
Bio-fuels used as propellantsexternal costs of production €/ton €/GJ



Heat –


Electricity -


Agro diesel


bioetanol– made from wheat

bionafta– biodiesel from rape

Source: Melichar andMáca 2006

municipal waste treatment options landfilling swds versus incinerating wip
Municipal Waste Treatment Options> landfilling (SWDS) versus incinerating (WIP)

Source: Havránekand Ščasný 2007 (MethodEx)

Social optimality perspective>Comparison of external costs estimates
  • Preferences, and thus impacts, vary among countries
  • Should impacts, lives say, be valued equally?
  • Value adjustment can provide better damage estimates, however, own country-specific estimates are even better

Source: Máca and Melichar 2007

social cost of climate change
Social Cost of Climate Change
  • damage estimates differ due to assumptions used, i.e. discount functional form and discount rate, equity weighting…
  • default reference value 19 € per ton CO2 (ExternE 2005; BeTa ‘07)
    • 2.4 € and 40 € per t CO2 used as lower and upper bound
Municipal Waste Treatment Options> WIP and SWDS ranking can change due to the assumptions on MSC of Carbon used

Source: Havránekand Ščasný 2007 (MethodEx)

external costs versus retail price
External costs versus retail price


2.38 CZK/kWh


1.58 CZK/kWh

Brown coal

1.11 CZK/kWh

conclu ding remarks
Concluding remarks
  • We have the method that can be used to calculate externalities of energy generation, i.e. the ExternE based on IPA as its core
  • External costs of energy generation significantly differ due to the technology used, location and time
  • Although, there is no technology with zero impact, renewable energies are less environmentally harmful, i.e. have less adverse impacts, than fossil-based technologies
    • burning biomass results in damage of 0.5 to 1.0 € per GJ of heat that causes mostly adverse health effects
    • electricity generation from biogas produces the externalities of 0.10-0.15 €c/kWh, wind power at least of 0.04 €c/kWh (plus process)
    • externalities associated with renewable-technologies are one order lower, i.e. the external costs of natural gas are  1.0-1.5 €c/kWh, hard coal  2.8 €c/kWh, brown coal  3.2-4.6 €c/kWh or lignite  5.8 €c/kWh
conclu ding remarks31
Concluding remarks
  • Technology always matters>
    • more advanced gas-technology is less adverse than more emission intensive biomass-technology
    • CHP’s are better-off than plants without co-generation
    • waste treatment with energy recovery always dominates treatment without recovery
    • impacts of up-stream processes need to be considered in properly conducted technology impact assessment
conclu ding remarks32
Concluding remarks
  • Limits of full assessment> assessment has not covered all impact categories
    • (dis-)amenities of renewables (noise, landscape, biodiversity)  cannot be modelled by EcoSense, but need to be analysed by conducting original non-market valuation study or benefit transfer technique
    • impacts of up- and down-stream processes can be important (biomass and bio-fuel production, extracted and transported fossils etc.)
    • nuclear cycle assessment (radionuclides, accidents, risk perception)
    • security of supply – preference for more secure supply of energies
    • Transmission lines – effect on landscape, likely on property value
  • Capacity building and information exchange are not certainly useless action

…As always, more research needed

research on external costs in cee
Research on External Costs in CEE
  • IPNEEDS> quantify external costs for reference energy technologies in 6 CEE countries (2006-2008)
    • AGH University of Science and Technology, Krakow
    • Atomic Energy Research Institute, Budapest(fossils, biomass, nuclear, CBA, GA)
    • Charles University Environment Center, Prague(fossils, biomass, nuclear, CBA, GA)
    • Polish Academy of Sciences, MEERI, Krakow(fossils + upstreams, CBA)
    • PROFING, Bratislava(fossils, biomass, nuclear, CBA, GA)
    • Stockholm Environment Institute Tallinn Center, Estonian Institute for Sustainable Development, Tallin(fossils, renewables)
    • University of National and World Economy, Sofia(fossils+upstreams, nuclear, GA)
  • CASES> full costs assessment of energy systems (2006-08)
    • Charles University Environment Center, Prague
    • Lithuanian Energy Institute, Kaunas
    • University of Warsaw - Warsaw Ecological Economic Center, Warszawa
  • IP EXIOPOL> external costs assessment for energy, waste, industry… in EU in extended I-O framework (2006-2010)
Milan Ščasný, Ph.D.

Charles University Environemnt Center

U Kříže 8, 158 00 Prague 5

[email protected]