WEG WCC String Solar Inverter

The WEG WCC String Solar Inverter is a grid-tied photovoltaic inverter for residential, commercial, and light industrial solar installations, available in single-phase and three-phase versions from 1 kW to 30 kW per unit. The WCC range is designed to SunSpec Alliance interoperability standards, ensuring compatibility with solar monitoring platforms and energy management systems from any vendor. Each WCC inverter features dual or triple MPPT (Maximum Power Point Tracking) input channels to handle multiple PV string configurations and roof orientations, a wide DC input voltage range of 200–1,000 V, and a high conversion efficiency of 97.5–98.2% at full load — performance that maximises energy yield from Saudi Arabia's exceptionally high solar irradiance of 5.5–7.0 kWh/m²/day, among the highest in the world. The WCC is certified to IEC 62109-1 (safety) and IEC 62109-2 (grid-connected inverters), with CE marking and G99/G100 compliance, and the three-phase version includes Saudi Electricity Company net-metering registration support documentation.

The WCC inverter's electronic design centres on a transformerless H-bridge topology with advanced MPPT algorithms that track the PV array's maximum power point at update rates of 100 ms, maintaining tracking accuracy above 99.5% even under the rapidly changing partial shading conditions caused by Saudi industrial site dust, mechanical shadows, and occasional cloud cover. The inverter communicates via Wi-Fi and RS-485, with optional Ethernet and 4G modules available for remote monitoring integration. The WEG Solar Monitoring Portal (cloud-based) provides 24/7 inverter status, energy yield, fault history, and performance ratio (PR) tracking — metrics that Saudi EPC contractors and building energy managers require for solar system warranty and performance guarantee management. Anti-islanding protection per IEEE 1547 and IEC 62116 is built in, satisfying SEC grid protection requirements for net-metered and feed-in tariff solar installations.

Saudi Arabia's solar energy market is growing rapidly under Vision 2030's National Renewable Energy Programme (NREP), with utility-scale projects (Al-Shuaibah 2.6 GW, Sudair 1.5 GW) providing headline capacity, but the commercial and industrial (C&I) rooftop solar segment is equally significant for the tens of thousands of factories, warehouses, commercial buildings, and government facilities seeking to reduce SEC electricity costs. SEC's net-metering programme (NEMO) allows qualifying consumers to offset daytime solar generation against their consumption, with excess energy credited on a monthly basis. The WCC's SEC net-metering registration documentation package, local warranty support through Razz Middle East, and SunSpec SCADA integration capability make it the right choice for Saudi C&I solar projects from 10 kW to 3 MW (multiple WCC units in parallel).

Razz Middle East supplies WEG WCC string inverters for C&I solar projects across Saudi Arabia, providing complete system design services including PV array sizing, string configuration, yield simulation using PVGIS/PVsyst with Saudi irradiance data, SEC net-metering application support, inverter supply, installation and commissioning, and solar monitoring portal setup. We maintain stock of the most common WCC ratings (5 kW, 10 kW, 20 kW, 30 kW) and provide next-day delivery to major Saudi cities. Pricing is in SAR with VAT. Contact Razz Middle East for solar project feasibility studies and commercial proposals.