{"id":10402,"date":"2019-01-11T09:32:51","date_gmt":"2019-01-11T17:32:51","guid":{"rendered":"https:\/\/www.microsoft.com\/insidetrack\/blog\/?p=10402"},"modified":"2023-06-12T15:56:43","modified_gmt":"2023-06-12T22:56:43","slug":"microsoft-uses-machine-learning-to-develop-smart-energy-solutions","status":"publish","type":"post","link":"https:\/\/www.microsoft.com\/insidetrack\/blog\/microsoft-uses-machine-learning-to-develop-smart-energy-solutions\/","title":{"rendered":"Microsoft uses machine learning to develop smart energy solutions"},"content":{"rendered":"
This content has been archived, and while it was correct at time of publication, it may no longer be accurate or reflect the current situation at Microsoft.<\/p>\n<\/div>\n<\/div>\n
At Microsoft, we\u2019re using Azure Machine Learning to improve the effectiveness of the operation schedules for our buildings\u2019 heating, ventilation, and air conditioning (HVAC) systems to reduce costs and increase employee comfort. We used Azure Databricks and Azure Machine Learning Studio to examine data from our HVAC systems and buildings, combined with weather forecast information, to predict building occupancy and HVAC behavior. Using machine learning is helping us optimize operations and drive digital transformation.<\/p>\n
Microsoft Real Estate and Security (RE&S) is responsible for heating and cooling 115 buildings in the Puget Sound area. Microsoft Digital partnered with RE&S to improve the effectiveness of the schedules for their heating, ventilation, and air conditioning (HVAC) system to reduce costs and increase employee comfort. Microsoft Digital implemented machine learning to predict when employees will arrive into Microsoft buildings each morning and how long it will take for a building to reach its optimal comfort temperature. As a result, we were able to generate a dynamic HVAC schedule that resulted in significant cost savings and increased employee comfort for RE&S. We\u2019re continuing to implement machine learning in our buildings throughout the Puget Sound region and we\u2019re encouraging the rest of Microsoft to use machine learning to optimize operations and drive digital transformation.<\/p>\n
At Microsoft RE&S, digital-transformation efforts center on the buildings in which Microsoft employees do their work. In the Puget Sound area, RE&S operates and maintains 115 buildings that house more than 59,000 employees. Although most of the buildings operate during standard business hours, Microsoft encourages employees to manage their schedule to best fit their workstyle. For example, buildings that house sales employees are often intermittently occupied, while employees in other buildings might get an earlier (or later) start on their workday. As a result, the primary hours of operation for buildings fluctuate from building to building and season to season. The systems that control HVAC vary between buildings, and each system needs time to bring a building, or sections of a building, to optimal temperature at the start of the day. We call this\u00a0ramp-up time<\/i>.<\/p>\n
RE&S spends a significant portion of its budget heating and cooling buildings, and tries to be as efficient as possible in maintaining optimal temperatures. Despite best efforts, RE&S still hears concerns about employees being either too hot or too cold in their work environments. When RE&S realized that the typical systems that schedule and manage HVAC operations had room for improvement, they partnered with Microsoft Digital to find a solution.<\/p>\n
After examining the cooling and heating patterns for Microsoft buildings and how our employees were affected, we discovered that morning temperature was the most significant concern. When employees arrived to work in the morning, buildings were often too cold or too hot, depending on the season. All our HVAC systems are configured to observe an energy-saving temperature range when a building is unoccupied. These temperature ranges are designed for energy conservation, but not for employee comfort. As a result, each HVAC system has a ramp-up time to bring the building temperature into a range that is comfortable for our employees. Ramp-up time is primarily determined by the HVAC system\u2019s capacity for heating and cooling, but it also varies from day to day due to outside weather conditions.<\/p>\n
Our findings indicated that the static schedules set for our HVAC systems didn\u2019t account for variance in ramp-up time from building to building or the different schedules that employees worked in each building. Our team recognized the opportunity to create a more intelligent and efficient method for managing our HVAC systems\u2019 scheduling to address two primary goals:<\/p>\n
The two primary goals that our team established translated into several critical tasks that we needed to perform to create a solution that would fulfill both goals as effectively as possible. Machine-learning models were chosen as a primary component. Our engineering team identified opportunities within machine-learning technology to increase the intelligence and effectiveness with which the HVAC systems were scheduled by using existing HVAC data and controls. The team\u2019s primary design tasks were:<\/p>\n