[NiHaoMike]

HVDC is a better solution in our case. At the distances and power levels encountered in DIY solar setups, you don't use particularly high voltages. Common power semiconductors can handle them. Only when you go beyond the voltage ratings of common power semiconductors does AC start making sense. (IGBTs are commonly available up to 1.2kV, and virtually every DIY solar install is far below that.)

Note that virtually every modern inverter converts the incoming DC to high voltage DC before converting it to AC. And most modern power supplies convert the incoming AC to high voltage DC before stepping it down.