TGD For EC
Tour The Galaxy Daily is an easy way to get energy credits. As soon you can go warp 9+ you clear the Alpha quadrant.
When can go faster you can clear the Beta quandrant. With diplomatic immunaty and or raiding party you can do both.
These are good paths for me. Below are the rewards as you level up. Just from doing TGD you will quickly get to level 4 in Exploration and Trade
At Level 10
500 EC each system visited
15 Exploration XP
Bonus 2,500 EC, 75 Exploratioon XP
Level 20
2,500 EC
20 Exploration XP
10 Trade XP
Bonus 12,500 EC, 100 Exploration XP, 50 Trade XP
Level 30
5,000 EC
25 Exploration XP
15 Trade XP
Bonus 25,000 EC, 125 Exploration XP, 75 Trade XP
Level 40
15,000 EC
30 Exploration XP
20 Trade XP
Bonus 75,000 EC, 150 Exploration XP, 100 Trade XP
Level 50 -
25,000 EC
35 Exploration XP
25 Trade XP
Bonus 125,000 EC, 175 Exploration XP, 125 Trade XP