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cost [2014/08/18 19:42] – codina | cost [2023/11/16 15:21] (current) – external edit 127.0.0.1 | ||
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+ | ====== Cost model ====== | ||
+ | ===== Output ===== | ||
+ | This model calculates the annual total cost of the Swiss energy system, which is decomposed into the following elements: | ||
+ | |||
+ | * [[cost_nuclear|Elec. Nuclear]] | ||
+ | * [[cost_thermal|Elec Thermal]] | ||
+ | * [[cost_hydro|Elec Hydro]] | ||
+ | * [[cost_wind|Elec Wind]] | ||
+ | * [[cost_pv|Elec Photovoltaic]] | ||
+ | * [[cost_geothermal|Elec Geothermal]] | ||
+ | * [[elec_grid_cost|Elec Grid]] | ||
+ | * [[seasonal_storage_cost|Elec Power to Fuel]] | ||
+ | * Elec Import | ||
+ | * [[cost_cogen|Combined Heat& | ||
+ | * [[cost_boiler|Boilers]] | ||
+ | * [[cost_other_heat|Other heat]] | ||
+ | * [[cost_fuels_transport|Transport (fuels)]] | ||
+ | * [[cost_demand_reduction|Demand reduction]] | ||
+ | |||
+ | For each of these elements the annual total cost ($C_{TOT}$) is calculated as shown in the following equation, | ||
+ | |||
+ | $C_{TOT} = C_{inv} + C_{fuel} + C_{O\& | ||
+ | |||
+ | where | ||
+ | |||
+ | * $C_{fuel}$ is the cost of all consumed fuels and imported electricity for one year, it accounts of the yearly operating time | ||
+ | * $C_{O\& | ||
+ | * $C_{inv}$ is the annualised investment cost for each element. Some elements only include one cost component, | ||
+ | |||
+ | |||
+ | The investment cost is calculated for each year (2011, 2035 and 2050) by assuming that the complete energy system is entirely replaced during the selected year, taking into account the relative prices and the technology development status. The investment cost is annualised based on the interest rate as in the following equation, | ||
+ | |||
+ | $C_{inv} = C_{invT} * \frac{i * (1 + i) ^ n}{(1 + i) ^ n - 1}$ | ||
+ | |||
+ | where | ||
+ | |||
+ | * $C_{invT}$ is the total investment cost, | ||
+ | * $i$ is the interest rate | ||
+ | * $n$ is the technology life time in years. | ||
+ | |||
+ | This assumption allows comparing the investment cost of 2011 with those for 2035 and 2050, without having to consider any installation/ | ||
+ | |||
+ | |||
+ | ===== Input ===== | ||
+ | |||
+ | The inputs of the cost sub-model are the "Fuel Prices", | ||
+ | |||
+ | ==== Fuel prices ==== | ||
+ | |||
+ | The "Fuel prices" | ||
+ | |||
+ | |ctsCHF/ | ||
+ | |::: ^::: |**MIN(1)** |**MID(2)** |**MAX(3)** |**MIN(1)** |**MID(2)** |**MAX(3)** | | ||
+ | ^Gasoline|8.59 < | ||
+ | ^Diesel|8.41 < | ||
+ | ^Bioethanol|7.36 < | ||
+ | ^Biodiesel|11.93 < | ||
+ | ^Heating fuel oil |6.54 < | ||
+ | ^Kerosene|5.91 < | ||
+ | ^Gas|6.50 < | ||
+ | ^Wood|3.01 < | ||
+ | ^Coal|3.60 < | ||
+ | ^Imported electricity [ctsCHF/ | ||
+ | |||
+ | The prices for fossil fuels in 2035 and 2050 are calculated by the following equations, taking into account the 2010 prices and the three evolution paths forecast by the European Commission < | ||
+ | |||
+ | $Price_{2035/ | ||
+ | \label{eq: | ||
+ | |||
+ | $Price_{2035/ | ||
+ | \label{eq: | ||
+ | |||
+ | $Price_{2035/ | ||
+ | \label{eq: | ||
+ | |||
+ | Bioethanol and Biodiesel are considered to have the same price evolution as the fuel they substitute (gasoline and diesel respectively). The price for wood in 2035 and 2050 is calculated following the same methodology used for the fossil fuel prices, but the evolution is based on the wood price forecasts in [[# | ||
+ | |||
+ | ==== Investment cost ==== | ||
+ | The " | ||
+ | |||
+ | ==== Interest rate ==== | ||
+ | The " | ||
+ | |||
+ | |||
+ | ===== References ===== | ||
+ | [1] [[http:// | ||
+ | |||
+ | [2] [[http:// | ||
+ | |||
+ | [3] [[http:// | ||
+ | |||
+ | [4] [[http:// | ||
+ | |||
+ | [5] [[http:// | ||
+ | |||
+ | [6] [[http:// | ||
+ | |||
+ | [7] [[http:// | ||
+ | |||
+ | [8] [[http:// | ||
+ | |||
+ | [9] [[lib/ | ||