There are different ways.
1.you can create a energy ball and within it you vibrate a couple of SURYAE (SUUU-RR-YAH-YAY) and programm it to help the gods or a fellow satanist in need.
2. you can give your orgasmic energy by visualization of there sigil and imagine after climax your energy does charge the sigil (you can also write the sigil down and fokus on it like a rune). You can also state a affirmation: I send this orgasmic energy to "name Demon".
3. when ever you feel you have to much energy you can allways ask your gd to take the excess energy and conserve it for you or give it to the gods.
4. raise your energy ( vu , wa , vo ; raum ; satanas; etc) send it to the gods like 2.
Read PDFs and just visualize it going to them, or ask them to take what you don't need. And u gather the same way as foundation meditation. See the power meditation page on jos and download PDFs.