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The default value for this parameter is the latest known average for all 27 European Union member states, as provided by the European Environment Agency. For best results, you can look up the specific value for your country here: https://www.eea.europa.eu/ims/greenhouse-gas-emission-intensity-of-1
Here are some samples:
Country | Year | kg CO2 / kWh electricity |
|---|---|---|
Belgium | 2020 | 0,167 |
Netherlands | 2020 | 0,333 |
United Kingdom | 2019 | 0,225 |
Investment costs
If the user has entered the correct parameters and clicked on the “next” button, a new page appears with input fields for the investment cost. The user should insert the correct material, installation and study cost for correct investment analysis.
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After the production details, the energies are analysed. The gas and electricity consumption are visualised, and with it, the energy savings compared to the reference is calculated. If CHPs (Combined Heat and Power) are used, the electricity production is also shown. Furthermore, the primary energy consumption is calculated using the input parameters from previous pages. With all the energy flows known, the system efficiency, the PER (Primary Energy Ratio) and RPES (Relative Primary Energy Savings) are calculated. More information on the calculations can be found in Pareto analysis: calculations.
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The energy costs are also calculated with the energy consumption and the electricity and gas prices of the input parameters. With the energy costs known, the cost savings compared to the reference is calculated.
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In the “Comfort” section, the general comfort aspects are visualised. The comfort ratio is the percentage of people who are satisfied with the delivered heating and/or cooling. The comfort improvement is calculated compared to the reference. The discomfort ratio is the percentage of people who aren’t satisfied with the delivered heating and/or cooling. The comfort class and main class is calculated and visualised. A detailed explanation of how comfort is quantified is found in Pareto analysis: calculations.
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The comfort details give the percentages of how long the room temperatures are within a certain class.
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Finally, the investment analysis is shown with the NPV (Net Present Value), the payback and discounted payback period in years, and the IRR (Internal Rate of Return). More information on the calculations can be found in Pareto analysis: calculations.
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