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Page 28 Analysis of possibilities for 1MW electricity generation from waste heat in the port of Rotterdam Chapter 7 is a comparison of the two proposed technologies: ORC and Kalina. We will use these evaluation criteria and also some other characteristics. 2.4 Economic analysis methodology 2.4.1 Power plant costs The best way to calculate the cost of the project is bottom-up: calculating the cost of the individual components and the contracting. However, this requires a level of detail that is not needed in this preliminary study. The methodology that was then used to estimate the cost of the 1MW power plant is extrapolation. The sources for the extrapolation are: • costs of previous plants (both ORC and Kalina) • capital costs (€ per kW power installed) from articles and other studies In conclusion, we will be dealing with a very rough estimate of the costs of the plant. And since we will be dealing with economic data that dates several years back, we will need to update this figures and/or convert them if they are expressed in dollars. The details of the update and/or conversion can be found in Annexes E.1 and E.2. 2.4.2 O&M costs We will also estimate the Operation and Maintenance (O&M) costs for the power plant. We will use the same value for both power plants (ORC and Kalina) because it does not differ much and it is . The first source is Lovekin [Ref. 36], who estimated in 2005 that geothermal power plants have O&M costs of 2,5 c$/kWh. Once converted and updated, the costs would be of 2,2 c€/kWh. We established that our plant would have a 75% utilisation factor, so it would produce 6.570 MWh. The O&M cost would then be around 150.000 € annually. We have a second “source”: a rule of thumb - O&M costs equal to around 2% of the total power plant costs [Ref. 38]. We will later see that the estimated plant costs are 1,5 and 2,25 M€, so the O&M costs would be between 300 k€ and 450 k€.PDF Image | 1MW electricity generation from waste heat port of Rotterdam
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