Comment by rstuart4133

Your retailer can choose to pass it on, or not.

Mine (a VPP) does pass it on. They charge me the going wholesale rate. If the wholesale price is sufficiently negative they pay me to use electricity. That's pretty rare, but it does happen every few months. The wholesale price has to be below about -4.5¢ for my price to be negative because the people who own the wires get to add a fee regardless of what direction the electricity is flowing, as does the government (admin fees of some description).

The converse is also true. If the price spirals to $19/kWh, I get to pay that too. At that price as single night could cost me $400, or it would if I didn't have a battery.

Which possibly explains why you haven't heard of it. If you don't have a battery big enough to get you through at the peak and shoulder hours and enough solar to charge it during the day you are better off with a more traditional retailer, who charges you a fixed price regardless of the wholesale price.