IRON
AND
COAL
AND
COAL
Capital Outlay
£
Six boilers & nine economisers (making a total of nine boilers at the colliery which would be in use)
5,350
Alterations and renewals to No2 winding engine
1,200
Turbo electrical generating plant with motors, cables etc 1,200kW
15,000
TOTAL COST
21,550
Estimated Savings per annum
At boilers and economisers, coal consumption 5,500 tons @ 5/-
1,375
Reduction of coal due to introduction of electrical power. 12,000 @ 5/-
3,000
Reduction of labour for stoking,ashes, etc
2,000
Reduction on a/c of alteration to No2 winding engine
450
TOTAL SAVING
6,825