Thermal power plant cooperation with wind turbines

In the present study two different sets of assumptions for future power production scenarios, one based on conventional technologies and another assuming a more sustainable energy oriented electricity production, for the Baltic States are analysed to identify the possible marginal electricity sources which could be used in consequential Life Cycle Assessment (LCA) studies in these countries. The environmental impacts of electricity production often account for a major portion of the total environmental burden in LCAs of many products and services. It is known that the environmental impacts of electricity production vary significantly between different energy sources, thus the choice of input data could significantly influence the final results of LCA studies. Therefore, it is important that the LCA practitioners and those who draw conclusions based on LCA studies have both an understanding about data sensitivity issues and the development of energy systems. In this article the implications of marginal data choices in LCA are discussed on the basis of a case study on energy production from municipal waste incineration in the Baltic States.

Section: Baltic Sustainable Energy Scenario (Bses)mentioning

confidence: 99%

Section: Long-term Marginal Electricity Sourcementioning

confidence: 99%

Electricity Scenarios for the Baltic States and Marginal Energy Technology in Life Cycle Assessments - A Case Study of Energy Production From Municipal Waste Incineration

Moora¹,

Lahtvee²

2009

“…The balance in Estonia's electricity system is currently regulated by oilshale power plants, which are not designed for that purpose [4]. Therefore the system operator is planning to build a new gas turbine for balancing activities [3].…”

Section: Modeling the Operation Of Wind Turbines And Chp Plantmentioning

confidence: 99%

“…A wind power plant must foresee its power generation. The accuracy of wind power generation forecast models currently available allows predicting the WP production up to 72 hours ahead with preciseness between 10 and 20% [4]. There are many options for balancing the WP, like using hydro power plants, gas turbines, gas engines, condensation power plants, connections to neighbouring countries etc.…”

Section: Introductionmentioning

confidence: 99%

Combined Heat and Power Plants Balancing Wind Power

Kuhi-Thalfeldt¹,

Valtin²

2009

Wind power (WP) is the most developing area in the Estonian renewable energy sector, but there are technical limitations on its integration. At a certain capacity some balancing measures are required to handle large amounts of WP. This could be achieved by introducing combined heat and power plants (CHP) at regional level. The use of gas engine allows quick response to load changes and therefore is suitable for regulating activities. As for principles of distributed power generation, the aim is to locally minimise the shortfall and surplus of electricity. By this additional costs of rebuilding power lines and building new balancing generation units can be avoided. In this paper possibility of balancing WP with CHP is analysed. The investigation is carried out with the help of energyPRO software, which allows simulating the cooperation of WP and CHP. Also the essence of building heat storage is analysed, to add flexibility into the plant operation.

“…Constant fluctuations in large base load units reduce the lifetime of boilers and increase the frequency of planned maintenance [8]. The emission dependence due to forecast error is presented in [13]. If we deal with the necessity of compensating wind power fluctuations with thermal power plants, the fuel cost characteristics must be considered as dynamic values.…”

Section: Characteristics Of Thermal Power Unitmentioning

confidence: 99%

Balancing of Wind Energy Using Oil-Shale Based Power Plants at Erroneous Wind Forecast Conditions

Palu

Oidram²,

Keel³

et al. 2009

Self Cite

During the negotiations with EU, Estonia was set an indicative target to increase the share of renewable energy sources in the electricity production to 5.1% of inland consumption by the year 2010. Similarly to the rest of Europe, one of the main means to achieve this target is to install wind turbines. The current paper analyses the capability of existing oil-shale power plants to cover differences between forecasted and actual generation of wind energy and shows that participation of fossil fuel-based power plants