Please help

[brunzenstein]

the solar accumulation suddenly starts to blink red . any hint?

[Koub]

You don't produce enough energy to fill your accus.

Day time

Factorio - We need more power.JPG (89.39 KiB) Viewed 1113 times

Your accus start to fill only if you produce excess energy. As you are underpowered, they never get to start filling.
[Edit] : "Never" was a little too pessimistic. When your consumption is very low, you just produce barely enough to save a few Joules, that are consumed during the first seconds of dusk.
[Edit2] : You need at least 3, maybe 4 times your blueprint of solar+accus to fulfill the demand day and night.

[brunzenstein]

Tank you - the most simple answers are often overlooked

[iceman_1212]

fyi, that solar design usually has an additional 9 accumulators (3x3 square) near the middle (removing 4 solar panels) so you have the right ratio (so that your solar can charge accus and accus can last all night). note that the square (if built correctly with the 9 accus i mentioned) only yields just over 7MW of effective power (over a 24 hour cycle). electric furnaces are huge power hogs. if you're still playing in this save, it might be worth going back to steel furnace until you can build up your solar array.

[brunzenstein]

fyi, that solar design usually has an additional 9 accumulators (3x3 square) near the middle (removing 4 solar panels) so you have the right ratio (so that your solar can charge accus and accus can last all night). note that the square (if built correctly with the 9 accus i mentioned) only yields just over 7MW of effective power (over a 24 hour cycle). electric furnaces are huge power hogs. if you're still playing in this save, it might be worth going back to steel furnace until you can build up your solar array.

Thanks for the hint - anyhow...
0.15 which is expected in a few days will change everything.
I will start from scratch and abandon all factory's created to that date.