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The aut­hors show that fu­el and energy complex is and shall be one from ba­sic fo­un­da­ti­on of so­cio-eco­no­mic de­ve­lop­ment of Uk­ra­ine and its re­gi­ons. The po­wer con­sumpti­on of gross do­mes­tic pro­duct is ba­sic in­dex of energy ef­fi­ci­ency. It cha­rac­te­ri­zes the le­vel of char­ges of fu­el and energy re­so­ur­ces on unit of mi­ne-out gross do­mes­tic pro­duct. The dec­li­ne of po­wer con­sumpti­on of eco­nomy, di­ver­si­fi­ca­ti­on of so­ur­ces and ways of supply of power re­so­ur­ce, incre­asing of na­ti­onal pro­duc­ti­on will pro­mo­te incre­asing of eco­no­mi­cal, po­wer and eco­lo­gi­cal se­cu­rity, which le­ads to op­ti­mi­za­ti­on of po­wer ba­lan­ce and pro­vi­des the cre­ati­on of so­il for per­ma­nent po­wer fu­tu­re of the co­untry. The struc­tu­re of in­for­ma­ti­on-analyti­cal system, which is Web-ori­en­ted and ba­sed on da­ta ba­ses and da­ta wa­re­hou­ses is de­ve­lo­ped. Such in­for­ma­ti­on-analyti­cal system is com­po­sed by two subsystems: in­for­ma­ti­on and analyti­cal. The techni­cal ba­sis of in­for­ma­ti­on subsystem is off-wi­red sen­sor net­works, which ha­ve im­por­tant pro­per­ti­es as self-or­ga­ni­zing and adap­ti­vity to chan­ges of ex­ter­nal con­di­ti­ons and infrastruc­tu­re. Analyti­cal subsystem is com­po­sed of po­wer da­ta wa­re­hou­se, to­ols of ope­ra­ti­onal and in­tel­lec­tu­al da­ta pro­ces­sing, prog­no­sing, vis­ua­li­za­ti­on and de­ci­si­on sup­port units. The al­go­rithm of cal­cu­la­ti­on of in­de­xes of po­wer con­sumpti­on of gross pro­duct of re­gi­on, which transforms to for­ming and struc­tu­ring of da­ta, re­cal­cu­la­ting of fu­el to con­di­ti­onal units, find the dif­fe­ren­ce bet­we­en gross con­sumpti­on of re­so­ur­ces and the­ir pro­duc­ti­on at the re­gi­on, de­fi­ni­ti­on of val­ue of mi­ned-out electri­cal and ther­mal po­wer at Lviv re­gi­on in con­di­ti­onal units of po­wer wit­ho­ut usa­ge of or­ga­nic ori­gin fu­el and pro­vi­des it ra­pid cal­cu­la­ti­on. The softwa­re to­ols with dif­fe­rent users in­ter­fa­ces for cal­cu­la­ting of in­de­xes of energy ef­fi­ci­ency of re­gi­on eco­nomy are in­ves­ti­ga­ted. The San­key di­ag­rams for pre­sen­ta­ti­on of po­wer ba­lan­ces of re­gi­on are se­lec­ted. It is shown, that po­wer ba­lan­ce is the flux of as­so­ci­ati­on of dif­fe­rent po­wer re­so­ur­ces (fu­el, he­at and electri­cal po­wer, so the po­wer me­dia in com­mo­dity form) in dif­fe­rent sec­tors of eco­nomy (supplying, transfor­ma­ti­on and con­sumpti­on) in po­wer units. The San­key di­ag­rams are ba­sed on row of no­des, con­nec­ted with flows of in­put and out­put da­ta. At po­wer ba­lan­ce flows pre­sents num­ber of in­put and out­put da­ta, whe­re width of dif­fe­rent ele­ments is pro­por­ti­onal to val­ue of po­wer. The no­des of di­ag­ram pre­sents the events or pro­ces­ses of transfor­ming, for example, im­port, fi­nal po­wer con­sumpti­on. San­key di­ag­rams com­po­sed from so­me parts, which de­vi­ded by no­des, cor­res­pon­ding to tran­si­ti­ons bet­we­en pro­ces­ses (sta­ges) of chan­ges (di­vi­si­on, as­so­ci­ati­on) of po­wer flu­xes. The softwa­re to­ols for pre­sen­ta­ti­on of po­wer ba­lan­ce by me­ans of San­key di­ag­rams, which are com­for­tab­le and cle­ar in use are in­ves­ti­ga­ted.

TOOLS OF VISUALIZATION OF POWER BALANCES AND ANALYTICAL SUPPORT OF ENERGY EFFICIENCY MANAGEMENT OF REGION