When electricity prices are negative, why not just get rid of it ?

Storage is saturated, power lines and interconnectors can't send the electricity where it could be of use... for whatever reason production capacities are not shut off

So we have negative prices (like 20% of the time in southern Australia)

So why don't we have like a huge electrical heating resistance, or dump electricity it into the ground or dissipate the energy in other simple, cheap ways ?