CItyville has the coolest 100% increase in payout with this solar panel. However you need to:
1. Collect from Observatory twice. No big deal. Should be there two energy. done.
2. Have 10,000 goods. Tough but not bad.
3. Increase city population by . . . 5000 in three days.
Now starting raw on these will be a bitch. Therefore, start planning now.
Here is how to do it.
1. Get land. You are going to need at least three new squares.
2. Start building the storage sheds. Get your cap up to at least 10k. You will need two squares of land.
3. Observatory. This should be done. If not good for you. That gives you a community building
4. Get more land
5. Fill up the malls with useless stuff.
(I filled up one mall with stores, never use it. The other is filled with restaurants which I use when the effiel tower is in play you still get the bonus on restaurants)
6. Start on community buildings. You should be able to get two or three a day. DO NOT INCREASE YOUR ACTUAL POPULATION. GO OVER THE 5K. I am at 40K residents and will need to get to 46K max.
7. More land. Send out those requests for building permits. I can get one every other day if I work on it. Leave the land sitting there but cleared.
8. Move houses that are filled to cap and have a low population into the shed(s) What is the point of having a house of a population max of 10 or 20. You need the space. As a last resort plow them up. I know that seems backwards but it works. You need the space.
9. You should be well along the way to getting this done. IF you are . . . running out of room . . . try turning your streets into sidewalks. Make sure they link to a street. Save the room.
10. Build houses BUT DO NOT FINISH them.
11. Get energy packs you will need them.
If you want to watch how someone does this link and be my friend I am face boom dot com slash chasisaac go there and friend me. Let me know you are a cityville person. I will add and send you crap all the time.
This all takes time and planning. When this all comes together you should complete all in 24 hours or less.