Wed / 25.05. @ 11:30
There is a well-proven need for reduction of GHG Footprint as well as the Nitrogen and Poisons Emissions (including SOx, O3, VOC, PMs) Footprints. The civic sector and, notably, buildings require about 40% of the overall energy consumption, and this is directly related to the released emissions, including GHG. Buildings can utilise renewable energy sources in different ways, including on-site or distributed energy supply. Renewable energy, including solar energy, heat pumps, geothermal, biomass and wind energy, attracts increasing attention in buildings to coming closer to sustainable buildings.
This presentation has been dealing with those issues to suggest progress towards sustainability. Several challenging issues have been recognised and are pointed out:
(i) Acceptable cost and Return on Investment would make the Renewable Energy System (RES) competitive without or with minimum subsidies. This is very desirable for civic and building implementation.
(ii) Follow the traditional observation: Simple is beautiful and usually efficient.
(iii) Minimised full GHG Footprints as well as Poisonous Pollution Footprints covering the period from the cradle to the grave, i.e. Influence afterlife and the trade-off of potential indoor pollution arise from the enhanced energy efficiency. Minimising emissions based just on the operation spot can provide distorted pictures.
(iv) Integration of various renewable energy sources (wind, hydro, solar) with heat and electrical energy storage systems, with grid and also backup sources of energy.
(v) Based on the efficient integration, smart energy management. The electricity preferably is synchronised by production and consumption, and only the excess of the electrical energy produced from RES to be stored.
(vi) The produced electricity has highly changing emissions content over the day and different parts of the year, and it is preferable to use energy with lover emissions content.
(vii) The footprint effects can be attributed eco-cost, which will help in evaluating the sustainability and the economic feasibility of the arrangements for renewable energy use in buildings, with long-term heat storage comprehensively
(viii) Closely to follow very fast developing and innovative field.