This)study)has)been)undertaken)to)gain)a)better)understanding)of)how)to)allow)for) energy)storage)in)the)design)of)a)future)built)environment)where)renewable)energy) systems)will)play)a)significant)role.) Electricity)storage)solutions)are)a)key)element)in)achieving)high)renewable)energy) penetration)in)the)built)environment.)This)paper)presents)an)overview)of)electricity) storage)technologies)and)their)distinct)characteristics.)The)currently)available) technologies)have)been)classified)according)to)the)means)by)which)each)can)be)used) in)supplying)energy)to)buildings.) As)the)storage)market)is)evolving)rapidly,)the)analysis)provides)an)upHtoHdate) evaluation)of)different)storage)options)with)regard)to)scale,)reliability)and)siteH specificity)among)others.) It)is)concluded)that)LiHion)batteries,)which)today)have)a)limited)use)in)the)built) environment,)and)ZnHair)batteries)that)will)be)commercialized)in)2013/14)are) amongst)the)most)promising)technologies)for)buildings)due)to)their)exceptionally) high)energy)density.)They)are)expected)to)play)an)important)role)in)reliable,) economical)and)energy)efficient)building)design)in)the)future.)NaNiCl)batteries,) which)are)currently)used)in)vehicles,)are)also)considered)an)important)technology)for) buildings,)because)of)their)high)cycle)lifetime)and)their)high)peak)power)capability.)) Keywords:)Electrical)energy)storage;)Renewable)energy;)Batteries;)Pumped)hydro;) Compressed)air;)Flywheels) * 1.*Introduction* In)the)last)decade,)increased)environmental)concerns)have)led)to)the)formation)of) European)energy)and)climate)policies,)which)suggest)a)significant)CO 2)emissions)) 2.*Electrical*energy*storage*technologies*

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The use of degree-days in building energy monitoring and targeting has often given rise to misinterpretation of results, which has in turn undermined condence in such techniques. Anecdotal reporting has, by turns, suggested the use of degree-days either works very well, or does not work at all. This ambiguous position is not helpful to energy managers who need robust tools and clear guidance on their use. This paper presents evidence to show how energy/degree-day correlations i.e., building performance lines, can be properly identi ed, while taking account of the correct (and practical) energy balance of the building. In doing so it shows how the correct building base temperature can be identi ed from reduced data sets, while demonstrating that such a practice is desirable. Performance lines constructed in this way, where appropriate, give rise to greater accuracy and reliability of results, while forming the basis for improved diagnostics.

This study explores the interaction between perceived and calculated thermal comfort in Iranian office buildings. To achieve this, a questionnaire survey in six office buildings in Tehran (Iran) is conducted in conjunction with physical measurements. The study results reveal that there is a good agreement between perceived thermal sensation and calculated predicted mean vote (PMV) from the measurements for the majority of the offices (four out of six). This finding implies that the calculation of PMV is valid for the Iranian cultural situation in air conditioned and HVAC office buildings. The results also show that more than half of the studied offices are not in good compliance with the comfort levels suggested in ASHRAE Standard 55 and ISO Standard 7730.

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