Tech Articles

Off-Grid PV System Load Control: Electronic Load Protections and Problematic Loads

February 28, 2025

Morningstar controllers include many electronic protections including load protections. This includes overcurrent, short circuit and high voltage disconnect (HVD) protections. The overcurrent and short circuit protection provide more reliability and […]

Off-Grid PV System Load Control: Equipment Self Consumption and Prioritized Loads

February 19, 2025

Equipment Self Consumption An important consideration regarding LVD/ LSOCD settings is the self-consumption of the solar charge controller(s), load controller(s) and any other devices in the system that are not […]

Off-Grid PV System Load Control: Morningstar Load Control Device Selection and Configuration

February 17, 2025

Morningstar provides load control options through solar controllers with built-in load control and stand-alone load control devices. Some controllers have load control presets and others also include programmable settings. The […]

Off-Grid PV System Load Control: Load Current Compensation (LCC) Load Control Settings

February 13, 2025

The two main factors that affect the accuracy of SOC with LVD/LVR settings are the discharge rate and battery cell temperature.  Battery voltage can most accurately indicate SOC with an […]

Off-Grid PV System Load Control: When to disconnect loads and why?

January 13, 2025

Of the utmost importance for load control is to never allow the battery to be completely discharged. This can do irreversible harm to the battery bank. The LVD setting should […]

Off-Grid PV System Load Control: System Sizing and PSOC

December 11, 2024

System Sizing Overview and Partial State of Charge (PSOC) Morningstar controllers and inverters are often used in autonomous off-grid systems; telecom, oil and gas, lighting, etc… Therefore, this article primarily […]

Off-Grid PV System Load Control: Off-Grid Uptime

November 11, 2024

Overview Effective charging, system management capabilities, and long-term reliability are often the primary aspects that are considered when deciding on what charge controller model and other system components to use […]

Charge Controller Settings for LiFePO4 batteries

June 26, 2024

If you are looking for the proper PWM or MPPT charge controller settings for Lithium Iron Phosphate (LiFePO4) Batteries, we recommend taking the following steps: Check if your battery brand […]

What is TAA Compliance and Do Morningstar Products Qualify?

June 1, 2024

What is TAA Compliance and Do Morningstar Products Qualify? – 6/1/2024 Recently, we have received a lot of questions about compliance with the U.S. Trade Agreements Act (TAA) and whether […]