Yeah, HV cables, even well-insulated, will burn off a solar panel's EU generation before you go 5 blocks. Is that an MFE up under your solar panels? I don't see a bat box anywhere.
Ah, your original post is misleading. Bat boxes store 40k, MFEs 600k, you said 60k so I was confused. Now, assuming you're using regular solar panels, use tin cable (ultra low-voltage) from the panels to the MFE (any non-dot side). Then stick an LV transformer right next to the MFE, making sure the 3-dot side is facing it, and run insulated copper cable for no more than 4 blocks to a bat box. Use the output from that to run your machines. The MFE and LV trans can be replaced with just a bat box if you want, but since you already have the MFE, keep it for the power storage.
Note on the MFE and bat box: the single dot is the output. Rotate it by clicking on the side you'd like to rotate it to with an IC2 wrench (6 bronze) or Electric wrench, or shift-clicking to rotate it to the side opposite the click.
Note on the LV trans: the 3-dot side is the input. The same click-to-rotate affects that side.
Clicking on either the output for a storage box or the input on a transformer will drop the item, and may break it if you're not using an electric wrench in lossless mode.