The loss will be same as long as current magnitude is same irrespective of what the power factor (pf) of the load current is. Just to clarify consider a single phase 110 V /220 V transformer . Let its Req=eqivalent resistane be 3 ohm (referred to 220 V side). Let it be rated 2.2 kVA.
Actually in the US is the cost of sand is about $11-13/Ton.
roofing. The average price for gravel for roofing purposes was $0.75 to $1.00 per ton. In 2000, construction sand and gravel production was 1.12 billion tons, about 59 times the amount sold and used in 1900. Production of sand and gravel, especially from dredges in the rivers and lakes of the Eastern United States, had been mostly