Learn how to select the right PV cable harness, solar extension cable and Y cable fuse connector for solar systems. This technical guide covers cable sizing, voltage drop, fuse protection, current calculation and practical solutions for EPC projects.

Learn about solar DC isolator switches for PV systems: core safety functions, DC‑arc control, emergency shutdown & maintenance protection. Explore NSPV robust DC isolator features, key selection parameters and application scenarios for residential, commercial, utility‑scale and PV‑storage solar projects.

Learn the essential steps for solar PV fire emergency shutdown. Understand why inverter shutdown is not enough, how to safely isolate PV DC power, and how the Identify, Isolate, Verify and Respond process supports safer emergency response.

NSPV Supports Gentari Australia’s 243MWp Maryvale Solar & Energy Storage Project with Advanced PV Connector Protection Solutions

German renewable energy developer ABO Energy has agreed to sell its Hungarian and Polish subsidiaries to Greek utility PPC, transferring the project pipelines, operating solar assets and 38 employees as part of the transaction.

This is according to figures published by the Institute for Energy Economics and Financial Analysis (IEEFA), released last week. According to IEEFA, the levelised cost of electricity (LCOE) for rooftop solar in Bangladesh is around BDT3.5-4/kWh (US$0.028-0.032/kWh), which compares favourably to the US$0.094/kWh tariff set for industries with a load of up to 5MW.

Set to take effect on the first day of 2027, the new national standards for China’s PV sector are set to phase out sub-630W modules and conventional polysilicon products.

What is the difference between 10×38mm, 10×85mm, 14×85mm and 22×58mm DC Fuses? Discover how PV fuse holders and Solar MC fuse connectors protect photovoltaic systems, combiner boxes, inverters and battery energy storage (BESS) in modern DC 1000V and DC 1500V solar projects.

The NSPV Solar MCB Lockout is a professional-grade safety lockout device engineered specifically for small circuit breakers (MCBs) used in solar photovoltaic (PV) systems. Designed by NewSun PV (NSPV), this compact yet robust lockout ensures that circuit breakers remain securely in the OFF position during maintenance, servicing, or emergency shutdown procedures. The product is manufactured from high-tension aluminum alloy, providing an excellent balance of lightweight durability and corrosion resistance — a critical requirement for outdoor solar installations exposed to harsh environmental conditions. The NSPV MCB Lockout is available in a clean white finish, making it highly visible on any electrical panel, and comes in a convenient package of 100 PCS per bag with a total package weight of just 0.48 kg (0.99 lb.).

In photovoltaic system design, the choice between a combiner box and a fuse connector is not simply a matter of system type, such as off-grid, grid-tied, or hybrid. The real decision depends on the number of strings in parallel, the electrical architecture, the installation layout, the protection requirements, and the maintenance strategy.

For many PV projects, both solutions can work. The question is not “which one is always better,” but rather which one is more suitable for this specific system.

What Does a Solar Isolator Actually Do?
A solar isolator switch is designed to completely disconnect the DC power flow between solar panels and the inverter.

Unlike general switching devices, it ensures:


Safe and visible disconnection
Reliable shutdown under high DC voltage
Protection during maintenance and emergencies

In simple terms:


It is the only device that guarantees the system is truly “OFF”.