CyboEnergy, Inc. has released a Battery-Less Off-Grid Solar System Design Guide. This guide will help customers and installers design off-grid solar PV water heating, zone cooling and heating, and electrification systems. The Guide illustrates how to use solar PV water heating to store energy in the form of hot water. It uses an off-grid PV water heating system, where a CyboInverter H model is connected to 4 solar panels and delivers solar energy to the lower heating element of the water heater. The temperature setpoint for the lower element can be purposely set much higher than the upper element. This way, the upper element that consumes grid power does not turn on unless a lot of hot water is used within a short period of time. Packaged PV water heating systems with OG-300 certifications are available through CyboEnergy's strategic partners. It also shows how to operate an off-grid system with no batteries by using an AC assisted off-grid solar system that can run 120V loads. With assisted AC input power, the system can run AC loads 24/7 with solar power, grid power, or combined power. It allows users to take major loads off the grid and avoid the cost and potential curtailment of an on-grid solar system.
CyboEnergy | http://www.cyboenergy.com