5.3. Scenario 2 – continuous 30 minutes forward
This is the scenario that is currently being proposed in Turkey. In this scenario, the clock is shifted forward by 30 minutes throughout the year with no DST. In other words, there is no summer or winter time practice. As a result, Turkey stays in the GMT+2.5 time zone throughout the year.
In Istanbul, in December and January, the Sun rises at 7:50 on average, creating approximately 50 minutes of morning darkness every day. When compared to the status quo, there will be more electricity demand for 30 minutes in the morning, which will be compensated in the evening. Additionally, the peak electricity demand in the evening will be shifted to the morning.
In February and November, the average sunrise time is approximately 7:20, leading to a 20-minute increased electricity consumption. However, as the Sun will also set 30 minutes later, this consumption will be well compensated for.
In March, there will be no darkness in the mornings, and an extra 30-minute period of energy conservation will be possible in the evenings as darkness will fall 30 minutes later.
For 7 months between April and October, it will be dark 30 minutes earlier in the evening, which will bring an increased demand for electricity throughout these 7 months. Despite the 30-minute electrical lighting savings made in the winter, these savings will be paid back due to the 30-minute increase in the summer. Relative error will be 7.67%.
In Erzurum, on the other hand, morning darkness will not occur in any month due to moving the clocks 30 minutes forward continuously. For 5 months between November and March, when forward time will not be used, sunset will occur 30 minutes late and thus save 30 minutes of electricity. However, in contrast to the status quo, the Sun will set 30 minutes earlier between April and October and electricity demand will rise by 30 minutes for 7 months. The savings made during the winter will thus be paid back in the summer. Relative error will be 10.78%.