As predicted by the country’s electricity suppliers, variable yellow tariffs ended up being lower-cost options than their variable green-tariff counterparts for electricity consumers in January, the first month of the country’s new color-coded tariff system, introduced to simplify price comparisons.

Though yellow and green tariffs are both variable tariffs, the former represent a lesser risk for suppliers, as their levels are set at the end of each month.

Overall, yellow tariffs averaged a price of 13.74 cents per KWh in January, 7 percent less than the average for green tariffs, which was 14.72 cents per KWh.

Just one energy supplier offered a green tariff level that undercut the company’s yellow tariff in January. All other suppliers offered yellow tariffs as their best-priced options in the variable tariffs category.

Power utility PPC offered a yellow tariff at a rate of 12.34 cents per KWh in January, below its rate of 13.64 cents per KWh for green tariffs.

On the same wavelength, Protergia, a member of the Mytilineos group, offered a yellow tariff of 13.28 cents per KWh, undercutting the company’s rate of 14.3 cents per KWh for green tariffs in January.

Elpedison’s yellow tariff in January, set at 13.51 cents per KWh, was 21 percent cheaper than the company’s green tariff for the same month.

Fysiko Aerio’s yellow tariff of 13.6 cents per KWh undercut the supplier’s green-tariff offering for January by 5 percent, while Elinoil’s yellow tariff, set at 13.27 cents per KWh, also cost less than the supplier’s green tariff, set at 14.04 cents per KWh.

Under the new tariff system, consumers may also opt for fixed tariffs, dubbed blue tariffs, now also available over shorter 6 and 8-month terms, instead of just 12 months, as was the case at the time of the new system’s launch on January 1.