Household electricity contract renewal prices in Singapore have increased by as much as 11 per cent since the start of the US-Israel war on Iran.CNA reported that on Feb 27, a day before the war began, fixed-price retail plans for residences ranged from 24.88 to 28.67 cents per kilowatt-hour (kWh).By Saturday (March 21), prices increased to between 28.80 and 29.18 cents per kWh depending on plan and retailer, according to AsiaOne’s checks on the Open Electricity Market’s price comparison website.The most expensive plan was from Senoko Energy Supply, whose monthly fixed price plan rose from 25.88 cents to 29.18 cents. This is almost a 12 per cent increase.According to CNA, a four-room HDB flat consuming an average of 357 kWh of electricity per month, will pay $10.42 more for a 24-month fixed price plan from Senoko Energy.But the retailers have different promotional gifts and rebates to lower the cost.Senoko Energy offers customers up to $240 in promotional gifts and rebates, compared to the $160 bill rebares previously. Read more