▁by - product ▁that ▁at ▁the ▁time ▁was ▁che aper ▁than ▁coal . ▁It ▁was ▁also ▁necessary ▁to ▁build ▁an ▁ 8 ▁ 0 0 0 m 3 ▁res er voir ▁near ▁the ▁Pra ça ▁de ▁Car v ão ▁( Co al ▁Square ) ▁to ▁store ▁this ▁fl amm able ▁liquid . ▁ ▁Bo iler ▁ 1 5 ▁ ▁Through out ▁the ▁year ▁of ▁ 1 9 4 4 , ▁the ▁CR GE ▁made ▁plans ▁to ▁replace ▁the ▁old ▁altern ators ▁and ▁bo ilers ▁with ▁equipment ▁better ▁su ited ▁to ▁the ▁reality ▁of ▁those ▁times , ▁a ▁consequence ▁of ▁techn ological ▁evolution . ▁Later , ▁and ▁due ▁to ▁the ▁increase ▁in ▁electric ity ▁consumption , ▁that ▁project ▁evol ved ▁into ▁an ▁expansion ▁plan ▁to ▁create ▁a ▁new ▁production ▁centre , ▁in ▁other ▁words , ▁a ▁new ▁therm oe lect ric ▁power ▁station . ▁That ▁same ▁year ▁the ▁National ▁Elect r ification ▁Law ▁was ▁approved , ▁indicating ▁a ▁turning ▁point ▁in ▁Portuguese ▁electric ▁power ▁policy , ▁making ▁hydro elect ric ▁systems ▁an ▁absolute ▁priority ▁for ▁power ▁production . ▁This ▁meant ▁that ▁a ▁project ▁for ▁a ▁new ▁therm oe lect ric ▁power ▁station ▁would ▁be ▁denied , ▁since ▁it ▁opposed ▁the ▁law . ▁After ▁making ▁several ▁appe als ▁to ▁the ▁government , ▁in ▁ 1 9 4 8 ▁the ▁CR GE ▁were ▁finally ▁granted ▁permission ▁to ▁proceed ▁with ▁a ▁minimal ▁expansion ▁of ▁the ▁Te jo ▁Power ▁Station , ▁which ▁meant ▁the ▁ac quisition ▁and ▁installation ▁of ▁a ▁new ▁bo iler , ▁bo iler ▁number ▁