Net metering VS Value of solar
Some places in US like Austin and Minesota have a different aproach for solar generation. Instead of net metering, they have Value of Solar, which is based on the gross metering of the effective solar generation.
How can I model this sort of scheme in Homer?
My understanding - based on the articles that you included- is that value of solar is a fixed price is a price per kWh, which you are credited for selling back to the grid. In HOMER, this can be modeled and is called a sell-back price.
Here's an article on HOMER's capabilities reated to scheduled rates:
Hope that helps!