EFFECT4buildings Newsletter - Effective Tools and Instruments for Energy Efficiency in Buildings

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TECHNOLOGICAL SOLUTIONS Companies who produce innovative technological solutions based on latest knowledge need more information on the needs of the public building owners. Public building managers need better knowledge on existing solutions, their profitability and how to order them to benefit the highest possible value. The tool consists of following elements that aim to enhance the dialogue between building managers and technology solution providers: an excel-list of mapped innovative technological solutions that are available in the Baltic Sea Region; building managers´ experiences on different technological solutions; evaluation of certain technological solutions such as centralized vs. decentralized ventilation, healthy and circadian lightning, thermal heating systems; guidelines and templates for procuring solar energy PV plants, indoor climate; light, thermal, air quality and acoustics, EPC and energy monitoring systems. With technical solutions, the best effect is achieved when domains are implemented together, integrated or synchronized with each other. Categories we consider important here are building envelope, ventilation, heating and cooling, water usage, lighting, electricity usage and building management systems.

ENERGY USE AND MONITORING – WILL IT HELP KEEP ENERGY COSTS UNDER CONTROL? Author: Mikk Maivel, State Real Estate Ltd, Estonia State Real Estate company will carry out 1.5-year energy monitoring test from hourly based energy use data from five test buildings. Energy monitoring main aim is to answer the question: can detailed energy monitoring decrease buildings energy cost or not and does the systems own cost exceed the revenue achieved? Although we live in the information age, we still find real estate managers who store their monthly energy data to handwritten books. It is not rare that accountants have the best overview of the energy performance and consumption of the building through making energy related payments. It was not long ago when property managers, owners and tenants of the building had no overview of the energy use and large energy fluctuations were visible by reference to consumption costs only.

Today’s situation has fortunately been greatly improved and building managers have better tools to do energy consumption analysis. Most of the experienced facility owners use specific facility management IT-systems to store monthly readings where overconsumption is discovered by property managers while inserting previous months data. State Real Estate also use an information system for maintenance departments to store monthly based energy usage data. The monthly energy data allows us to compare buildings with similar usage (e.g. school buildings, kindergartens etc.) and detecting possible anomalies and unnormal consumption fluctuations. If there are not enough buildings to compare, a simple spreadsheet program will also help. But there is one flaw – energy usage data is collected with monthly delay, small differences can go unnoticed and readings are not often collected at the same times, which in turn increases the risk of not being detected in time.

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