Building and Estate managers are professionals who are in charge of guaranteeing and improving the operability of the building(s) they manage according to its/their intended use.  The management of the aspects related to energy (consumption, emissions, costs and maintenance of energy systems) may be, or may not be, part of their tasks. They can be the owners/managers of the buildings or external consultants.

The category of Building and Estate managers comprises the following professionals/companies:

  • Building administrators (residential sector: they are appointed by houseowners for the management of the buildings and related energy issues);
  • Building/estate owners (public and private buildings. Examples: residential buildings, educational and health facilities, commercial buildings and services);
  • Real estate companies.

DIMMER provides Building and Estate managers the solutions allowing them to:

  • Display data on consumption (tables, graphs) adjusted to outdoor temperatures;
  • Verify and locate consumption anomalies;
  • Perform simulations related to refurbishments: expected consumption, emissions, costs and payback periods;
  • Make comparison of buildings based on energy consumption;
  • Have benchmark for energy consumption;
  • Identify the measures needed in order to meet carbon targets (e.g. achieve a better energy certificate rating) and/or cost reduction targets;
  • Analyze the energy infrastructure (electricity, heat, gas) available for all buildings connected to an energy network;
  • Obtain an operational regime for electricity and heat infrastructure to reduce carbon emissions and costs;
  • Discuss energy info with building users.

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Here below two illustrative scenarios that have been specially designed for particular kinds of building managers.

Scenarios

The Energy Manager of the University Campus is at work on the DIMMER portal. He visualizes the graphs, showing the consumption of energy for the last year, both for the overall campus and for each building. In order to meet its carbon targets, the University Campus is planning to improve the energy certificate rating of the library from a D to a C. Indeed, it emerged that the consumption of the library was the highest, corresponding to one eighth of the overall consumption of the University Campus. He finds some anomalous values related to changes that have occurred in the ratio between winter and summer consumption that could be due to the air conditioners that have been recently installed in that building.

An analysis of the energy consumed by the building provided by DIMMER highlights that electricity consumption must be reduced (or electricity generation within the district must increase) by 90 MWh per year in order to reach a C energy certificate rating, which is not achievable with available energy infrastructure in the building. Nevertheless, DIMMER also provides an analysis of the energy infrastructure available in the buildings connected to the library through the electricity, heat and gas networks. This analysis also includes an estimation of the spare electricity (and heat) generation capacity in each building, and the available network capacity required to transport the energy to the library. DIMMER identifies the most convenient energy infrastructure that can be managed to deliver the 90 MWh per year required by the library (in addition to the energy losses throughout the network) and proposes the relevant operation scheme for this infrastructure.

An improvement in the energy certificate rating does not guarantee a reduction in carbon emissions and costs, as carbon factors and prices vary with time. Accordingly, on top of providing the additional 90 MWh per year to the library, DIMMER is used to formulate an operational regime for electricity and heat infrastructure to also reduce carbon emissions and costs.

DIMMER provides flexibility to prioritize either carbon or economic benefits. If the economic benefits are prioritized, DIMMER proposes a regime that provides the 90 MWh of electricity per year required by the building, while also reducing total carbon emissions by 1% and electricity costs by 5%. Otherwise, if carbon reductions are prioritized electricity costs can be maintained at the same level while mitigating emissions by 5%.

Maria is a professional building administrator. The apartment buildings that she manages have centralized heating system or are connected to the district heating network. Since the next apartment owners meeting is going to take place in a few days, she logs into DIMMER and opens the building of 23, Vienna Road. She controls the trend of consumption for thermal energy with values adjusted to outdoor temperatures. As confirmed also by the benchmarking service, consumption values are indeed relatively high if compared with buildings having equivalent characteristics. She asks for a simulation of the effects of some refurbishments, in terms of level of consumption, cost and payback period.
During the last few years, in many of the apartments of the building, landlords-tenants conflicts have been preventing the adoption of even the most basic energy improvement measures. However, the results she got through the refurbishment simulation tool demonstrate that changes are at reach and that should no longer be postponed. By means of the Community Portal tool, she gives notice of the results she got to the tenants of the building.

If you are interested in receiving more information, please contact us:

dimmerFP7@polito.it

Politecnico di Torino,
Corso Duca degli Abruzzi, 24
10129 Turin (Italy)