Hello!
As a private project, I am trying to create a house that is generally the best construction solution from an economic perspective in the long term. I understand that this question is not easy as it depends on so many different factors. The factors I am primarily considering are U-value, the available energy alternatives at the location, and the region in the country, and so on. I need some help with how I can go about finding out and proving which is the best construction solution (walls, roof, slab, details, ventilation, etc.) that would win such a comparison.
Goal: To create a report where the goal is to analyze which general construction solution with associated energy systems would be best if the house should be able to be built anywhere in the country. In short, the construction solution that costs the least after, say, 20 years wins.
Method: This is the method choice I am considering.
1. I think the easiest would be to use a tool like BV2 to calculate energy usage for different construction solutions in different parts of the country. This is then multiplied by the average price of electricity over a year.
2. Calculate the construction cost for the solutions I calculated in point 1.
3. Then sum the costs for these over, let's say, 10 and 20 years to get a clear picture of the cost of these houses over a longer perspective.
Questions.
1. If you have any way for me to calculate these parts easily, or if there are any existing studies in the area.
2. Which construction solutions would you compare if you did this test?
If I have missed anything that would be of interest in such a study, please let me know.
As a private project, I am trying to create a house that is generally the best construction solution from an economic perspective in the long term. I understand that this question is not easy as it depends on so many different factors. The factors I am primarily considering are U-value, the available energy alternatives at the location, and the region in the country, and so on. I need some help with how I can go about finding out and proving which is the best construction solution (walls, roof, slab, details, ventilation, etc.) that would win such a comparison.
Goal: To create a report where the goal is to analyze which general construction solution with associated energy systems would be best if the house should be able to be built anywhere in the country. In short, the construction solution that costs the least after, say, 20 years wins.
Method: This is the method choice I am considering.
1. I think the easiest would be to use a tool like BV2 to calculate energy usage for different construction solutions in different parts of the country. This is then multiplied by the average price of electricity over a year.
2. Calculate the construction cost for the solutions I calculated in point 1.
3. Then sum the costs for these over, let's say, 10 and 20 years to get a clear picture of the cost of these houses over a longer perspective.
Questions.
1. If you have any way for me to calculate these parts easily, or if there are any existing studies in the area.
2. Which construction solutions would you compare if you did this test?
If I have missed anything that would be of interest in such a study, please let me know.
Spontaneously, it feels difficult to offset construction solutions with the electricity bill. Simply put, a rectangular gabled roof construction with spans calculated for C24 timber with the kitchen and bathroom grouped for the shortest possible routing will probably always outsmart cleverness.
Your model is far too one-dimensional. Just as you cannot calculate an optimal plan solution using an equation, you cannot determine an optimal construction in a similar way. You must first draw a house with a specific floor plan, window placements, directional orientation, etc., and then test it with different implementations and localizations. Keep in mind that room temperature is not the only parameter for a good room climate. Read what it says in BBR about Thermal climate in section 6:4. In general, you must comply with the rules in BBR on accessibility, fire protection, etc., which limit material choices.
Yes, one might think so, but I actually already have my civil engineering degree and wrote about a completely different subject back then. But you can believe whatever you want, of course.Violina said:
This feels like a thesis and someone who doesn't want to do the work themselves by reading and compiling reports..
I absolutely understand what you mean and believe that a limitation is in order. By specifying Climate Zone and Atemp, it makes it easier. If energy data can be obtained from a number of construction solutions in this manner, then I don't think there is any problem in subsequently conducting an LCC analysis of this.J justusandersson said: