About Improvement

IMPROVEMENT project-“INTEGRATION OF COMBINED COOLING, HEATING AND POWER MICROGRIDS IN ZERO-ENERGY PUBLIC BUILDINGS UNDER HIGH POWER QUALITY AND CONTINUITY OF SERVICE REQUIREMENTS”, (SOE3/P3/E0901) has a budget of 2.5 million euros and is 75% co-financed by the Interreg SUDOE programme and the European Regional Development Fund (ERDF) under Priority Axis 3, Low Carbon Economy.

Its overall objective is to convert existing public buildings into nearly zero energy buildings through the integration of renewable energy micro-grids with combined heat, cold and power generation and storage systems, specially designed for Southern European Countries’ climatic conditions.

IMPROVEMENT has a duration of three and a half years (until March 2023).

Description of the Improvement Project



The overall objective of IMPROVEMENT is to turn existing public buildings into near-zero energy buildings by integrating renewable energy microgrids with combined heat, cooling and power generation and storage systems. More specifically, IMPROVEMENT has three specific objectives:

  • Development of a system to improve thermal efficiency through the production of solar heating and cooling and the incorporation of active/passive techniques for buildings with zero energy consumption.
  • Development of a fault-resilient power management system for microgrids under design criteria of high quality of supply.
  • Development of a microgrid energy management system with hybrid energy storage under criteria of minimum degradation and minimum cost of use of the storage system.

Project Activities and Phases 

IMPROVEMENT aims to convert existing public buildings into zero energy buildings by integrating combined cooling, heating and power (CCHP) microgrids with neutral clamped inverters using hybrid energy storage systems which will guarantee power quality and continuity of service of sensitive equipment (medical and scientific) while increasing the energy efficiency in these kind of buildings.

The IMPROVEMENT project plans to carry out 2 pilot plants to implement and validate the new developments.

Phases of the Project


Projects results 

IMPROVEMENT will achieve the following results:

  • Improving the energetic autonomy of existing public buildings through hybrid storage systems, even under extreme weather conditions.
  • Increasing the energy efficiency of public buildings with the integration of near-zero energy building techniques, and renewable energy based cooling and heating systems with thermal storage.
  • Development of fault resilient microgrids using inverters with active neutral control to ensure quality of supply in the presence of sensitive loads (high-tech equipment).
  • Demonstration in real public buildings.
  • Develop regional strategies and implementation plans.
  • Develop a business plan to commercialise the developed technology.

IMPROVEMENT develop solutions aligned with priority axis 3-Low carbon Economy, SUDOE programme, implementing following solutions:


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