need help getting this. any ideas?

well you need to get to that control room in Helios one. the Big room with the computer terminal in the middle, and a ladder that goes up to a holographic map and a malfunctioning mr handy robot. You use the computer terminal (which you have to fix first) to specify where you send the solar energy from the panels outside.

In the quest "that Lucky Sun" you're supposed to send the energy to The Strip and McCarran (I think?) or to the whole region. Instead you can choose to send the energy to Archimedes II.

You then use the C-Finder you found to aim it. It can only be used once per day I think?

In some ways you're right Carney.

In 'That Lucky Old Sun' you are given four options, three of them are to Route the power to either The Strip and McCarran, Freeside, or the regional grid. (I personally prefer the Freeside power route)

Now, the fourth option is to route power to Archimedes ll, if you route power to it, you'll need Euclids C Finder, which can be obtained off of the kid who chases the girl around in Freeside. You can either steal it from him whilst he sleeps, or, you can buy it off him for 1,000 caps (less if you have a decent barter skill)

Unless you hate NCR, do NOT activate the Helios outer security, as this will kill the NCR stationed at Helios.