Cumulative Totals from a Measure

[Anonymous]

Hey y'all, 

So I am trying to create different scenarios of potential energy savings for a group of buildings that are selected depending on building types and building sizes from years 1-10. In the dataset, I have current annual energy use for each building. Then, I have created a measure for their expected energy use for years 1-10 using different parameters of %savings (from 0.5%-2% annually) and a parameter for year. I used a compount future value equation for this measure. For example. I can select 1.5% and Year 5, and get the energy usage in that year given a reduction oin energy consumption of 1.5% annualy. Now, I want cummulative sum of savings for each year. So for example: 

Energy Usage in Year 0 = 20 kWh

Energy Usage in Year 1 = 18 kWh 

Energy Usage in Year 2 = 16.2 kWh

Energy Usage in Year 3 = 14.58 kWh

NOW, I want Power Bi to tell me cumulative savings by Year 2 = 5.8 kWh (2 from Year 1 and 3.8 from year 2) and by Year 3 = 11.22 kWh. 

Could anyone please help? Is this possible to accomplish with measures and parameters involved? Thank y'all so much 🙂 

[amitchandak · Accepted solution]

@Anonymous , Assume you have measure Energy Usage

with help from a separate date/year table joined to this table

Calculate( sumx(Values(Date[Year]),[Energy Usage]), filter(all(Date), Date[Year] <= Max(Date[Year]) ) )

[Anonymous]

Thank you so much, my friend! Have a blessed one 🙂