When Vasakronan’s Energy Data Scientist Oskar Häger and his team conduct daily optimization work on their portfolio, early detection of faulty equipment is a key success factor. Idun’s Optimize application is a crucial part of this process.

Optimize’s feature set enables Oskar to perform critical functions on the building portfolio. The result of applying the features on the portfolio has been threefold; Vasakronan has saved 36% in district cooling and heating costs, minimized emitted CO2 levels and engaged employees in their daily optimization work. Nevertheless, Oskar notes that a key result of using Optimize is its ability to engage employees and simplify their daily work. Nicklas Walldan, CTO at Vasakronan is looking forward to applying the effects of Optimize. “We are thrilled to follow this as we scale this application up in the rest of the portfolio.” he says.

“We are thrilled to follow this as we scale this application up in the rest of the portfolio,” says Nicklas Walldan, CTO Vasakronan.

Making systemic energy savings is a contributing factor to Vasakronan’s position as the top 15 sustainable property companies in the world, according to the Global Real Estate Sustainability benchmark.

Problem Analysis

Prior to using Optimize, operators at Vasakronan had to read sensor data manually from each building. Moreover, Oskar needed to import data from several systems into a program to perform analysis. The process involved time-consuming data cleaning and harmonizing of data from different systems before analysis could take place. Also, identification of faulty equipment occurred during infrequent on-site visits.

Solutions Provided

Running Optimize on Idun’s operating system for real estate portfolios, ProptechOS, ensures that data is already prepared and the Vasakronan portfolios can be checked within minutes. Using the application, the team can track optimization implementations and instantly see their impact on the portfolio. Moreover, the application provides Oskar with valuable features facilitating critical tasks including peak shaving, optimization of Delta T (i.e. the change in temperature of incoming and outgoing air) and the possibility to contextualize energy data with temperature and flow data.

Results Achieved

In their property Kista Science Tower, Vasakronan estimated a potential to decrease subscribed power of district cooling by 30%, using the Optimize application. By the end of 2020, the team at Vasakronan saw a reduction by an additional 6 % (total of 36%). That equaled to a total of 200 000 SEK/year in cost savings.

Considering the effects of Optimize on the building, the plan is to implement the application on a majority of Vasakronan’s properties in Stockholm. The desired result would be to decrease the subscribed power of district heating and cooling by 10%. Consequently, the saved costs for Vasakronan would be 6 MSEK yearly, starting this year.

Listen to a webinar where Vasakronan share their best practices using Optimize.

About Optimize

Optimize collects energy data from utility companies and energy meters using IoT sensors through the ethernet and LoRa. Using direct connected energy meters enables it to provide higher resolutions for electricity. Data is harmonized in Idun’s operating system for real estate portfolios, ProptechOS and is analyzed using the Optimize application. Further, it is possible to use applications from the ProptechOS App ecosystem to ensure quality of data. Using presence sensors combined with energy sensors contextualizes data and helps understand the data through dashboards. As data is collected the distribution of reports and dashboards can be adapted to the business intelligence system of choice.