The MIDNATTSSOL project is focused on the development of technologies and tools to strengthen the deployment of the distributed generation solutions with photovoltaic sources, and incorporating building HVAC demand management including thermal energy storage systems. Buildings are strongly conditioned by the constructive aspects, the weather, their users, etc. All these factors will be considered in the development of a decision support tool that will monitor in real time the building user’s demand profiles (base lines) and will have a reliable photovoltaic generation forecast in order to assist the Facility/Building Manager in the optimization of the HVAC operation and maintenance.

MIDNATTSSOL will integrate the most cost‐effective generation technologies and new HVAC schemes of energy demand. This will be deployed using expert autolearning and forecasting systems with available management and storage tools. This focus has more relevance in areas around the polar circles where the solar daylight time versus demand is more variable. The MIDNATTSSOL (Norwegian translation of “Midnight Sun”) is an extreme case of it.

Project objectives

MIDNATTSSOL aims to develop a system able to integrate in real time the photovoltaic energy surpluses and the user consume of an HVAC facility. Moreover, it has to maximize the solar energy consume respect the demand and to improve system efficiency, competitiveness and sustainability.

Technical objectives
  • Expand control strategies to extend the working range of heat pumps, due to the need to adjust it consume to the energy surpluses. Traditionally this type of pumps work under a ON/OFF regulation or under limited operation ranges.
  • Develop new HVAC function schemes with heat pumps and thermal storage systems to be able to meet cost-effectively new market needs.
  • Conceive algorithms capable of identifying energy surpluses being aware of the base demand line. These algorithms will identify in real time the difference between generation and demand taking into account forecasts and the “noise” produced by clouds.
  • Develop smart systems capable of detecting unusual behaviors to find evidence of damage or deterioration of the equipment involved in the photovoltaic generation.
Market objectives
  • Reach international markets using cloud-computing technologies.
  • Widespread diffusion of PV technology, launching a digital user-friendly platform to facilitate its control to domestic and tertiary users.
  • Implement new solutions for HVAC systems in buildings with integrated PV facilities.
  • Offer efficient and inexpensive tools to the facility manager to improve its performance.
  • Penetrate in Nordic markets.
Environmental objectives
  • Reduce CO2 emissions by boosting renewable and green energy generation.
Strategic objectives
  • Place the consortium as a world leader in energy management offering global solutions and complying with local regulations.

Overhead R&D lines

To develop this project it is necessary to open new R&D lines in different knowledge and activity sectors:

  • Energy efficiency
  • Renewable energies
  • Climate change
  • Monitoring
  • Aerothermal heat pumps
  • HVAC systems
  • Energy management
  • Smart surpluses management
  • Prediction of PV generation

Task list

The implementation of the project will be done through five work packages:

WP1. State of art and normative
WP2. Identification of photovoltaic surpluses
WP3. PV surpluses management
WP4. Expert system in O&M
WP5. Demonstration and validation of the technology