1500V DC has replaced 1000V for utility and large C&I. String inverters are now competitive with central inverters up to 5 MW blocks. Here's the 2026 selection guide.
1500V DC market share (utility)
~92%
of new-build 2026
Top Chinese 1500V inverters
SG350HX, SUN2000-330KTL, HT250K
CIF price per W (utility string)
$0.014–0.020
String vs central at 1500V
Modern 1500V string inverters (200-350 kW) match central inverter LCOE for blocks up to 5 MW while offering per-string MPPT — better performance in partial shading and easier O&M (one failed inverter = 1% of plant, not 100%).
Frequently asked questions
QIs Huawei still a valid choice for US utility 1500V?
No — US Entity List restrictions eliminate Huawei. Sungrow SG350HX, GoodWe HT250K and Sineng are the Chinese-heritage alternatives for US utility scale.
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