The rise of microgrids and Distributed Energy Resources (DERs) like rooftop solar, battery storage, and EV charging stations is fundamentally changing distribution line stringing practices by introducing the concept of two-way power flow:

• Two-Way Flow Capability: Traditional distribution lines were designed for one-way power flow from substations to consumers. With DERs, power can now flow from consumers back to the grid. This requires conductors and equipment rated for such dynamic conditions and necessitates precise stringing to ensure optimal power quality and minimal losses.

• Increased Current Capacity: While voltage remains typically the same, the localized generation from DERs can increase current flows on certain sections of the distribution network. This sometimes necessitates stringing conductors with higher ampacity or upgrading existing lines, requiring tension stringing equipment capable of handling larger conductors.

• Voltage Management: The intermittent nature of DERs can cause voltage fluctuations. Proper sag and tension during stringing contribute to maintaining desired electrical characteristics that support voltage stability, working in conjunction with smart grid voltage regulation devices.

• New Connection Points: Microgrids and DERs require new connection points to the distribution network. This involves localized stringing projects to connect these new generation and storage facilities, often in more varied or congested locations.

• Resilience and Islanding: Microgrids are designed to "island" (disconnect from the main grid and operate independently) during outages. The physical connections and conductor integrity established during stringing are critical for seamless transition and reliable operation in island mode.

• Underground Interconnections: Many DERs, especially in urban settings, utilize underground connections to the distribution grid for aesthetics and protection. This increases the demand for efficient underground cable laying equipment.

Our comprehensive product line supports the modernization of distribution grids for DER integration, offering the right tension stringing and underground cable laying equipment for a future with more localized and two-way power flow.