How does the recent European eco-design directive on transformer loses affect my distribution network and business?

New design eco transformers manufactured since July 2015 are approximately 40-60% more efficient than previous designs, dating back prior to 1975. A cost verses reliability assessment should take into account the annual losses a pre 1975 transformer would cost. An example being a 1000 kVA fully loaded 1970 design could cost up to £7,000 per annum in copper and iron losses, compared to a similar eco transformer that could realise an approximate saving of up to £3,500 per annum.