As distributed energy resources (DERs) become more common, reliable grid integration is essential. EG4 inverters stand out by complying with the UL 1741 CRD-PCS (Certification Requirement Decisions for Power Control Systems), a critical standard for grid-tied systems. In states like California, this compliance ensures seamless utility interaction, essential for approval by utilities such as PG&E and SDG&E.
Why CRD-PCS Compliance Matters
Compliance with UL 1741 CRD-PCS is mandatory in states with strict regulations. EG4 inverters not only meet these standards but also offer flexible operational modes, ensuring smooth grid interaction and future-proofing investments. This compliance guarantees reliability and avoids costly system upgrades, while meeting utility requirements.
EG4 Inverters: Four Key Operational Modes
EG4 inverters operate in four UL 1741 CRD-PCS-certified modes, each designed to meet specific energy needs:
- Unrestricted Mode: Enables two-way power flow between the grid and energy storage, maximizing flexibility for energy production and consumption.
- Export-Only Mode: Allows energy to be sold back to the grid without charging from it, ideal for users generating excess solar power.
- Import-Only Mode: Draws energy from the grid to charge batteries but prevents feeding energy back, prioritizing storage.
- No-Exchange Mode: Prevents power exchange with the grid, useful for off-grid scenarios or during outages.
Advanced Features: Export and Import Limiting
EG4 inverters intelligently limit power exchange to prevent overloading electrical systems, eliminating the need for expensive main panel upgrades. This advanced control ensures grid stability while reducing installation costs.
Additional Benefits
- Cost Savings: Avoid expensive main panel upgrades through smart power management.
- Streamlined Grid Connection: EG4 inverters ease the permitting process, helping customers install systems faster.
- Future-Proof Design: EG4 inverters evolve with changing grid standards, eliminating the need for future retrofits.
Advanced Grid Interaction with EG4 Inverters
EG4 inverters offer advanced grid interaction, mastering the four UL 1741 CRD-PCS operational modes while providing smart export/import limiting. For customers in states with stringent grid regulations, EG4 ensures compliance, reliability, and long-term savings—future-proofing energy investments in the evolving DER landscape. Feel free to contact us for more information or take a look at our white paper for more details on this topic.
