Voltage Drop.

Array wiring will always have some voltage drop. We assume a voltage drop of 1% on the array side.

High Grid Voltage.

The grid voltage will be higher than 240 in some locations (close to a transformer). The allowed grid voltage for inverter operation is up to 264V (10% high). When the inverter is pushing power to the grid, any voltage ”drop” in the AC wiring of the inverter is seen at the inverter terminal as a voltage rise. We assume the grid voltage will be 2% higher than 240. this is applied as a 2% lower voltage of the array.

Maximum / Minimum Temperatures at site.

The temperature at the site will effect the array voltage (variable by site). We assume the temperature minimum will be 40 Deg F. and the maximum will be 113 Deg F. if your array location experiences wider temperature extremes,
discuss other options with your sales person. The average modules we sell have 2 or 3 bypass diodes. When a full cell or more is shaded, the voltage from the bypass diode area is lost while the current is allowed to bypass the shaded area. (All of the voltage from every bypass area a cell shade condition). We assume no shading, but you have partial shading at your array site you should select relatively higher voltage array designs.

By incorporating these know factors into array design we have more restrictive criteria and a few less designs that we find acceptable when compared to inverter manufacturers’ string sizing tools.
This inconvenience is unfortunate but it means that the design we approve will perform better over the life of the system.
If you have shading, high grid voltage, greater than 1% voltage drop in the array wiring or move extreme temperatures than 14-113 F, let your sales rep know and we can review the best design for your particular application.

Research & Design.

A24Solar is design driven company with a “customer first” mentality take survey the site and next, we sketches using 3-D CAD software. After we are selected the best potential design concept, or once we are completed our design, we use sophisticated computer Analysis tools to simulate the real-world conditions our system will be exposed to. These conditions include wind loading, PV panel loading, and exposure to the element.
After we are completed our Analysis, we create a final production design that producing, and than put by one of our production refer, this design is create in CAD that will be transmitted to our production tooling suppliers to assure that the production tooling matches the production design requirements.
We send our engineers to project sites to witness installations of our works and support our customers. The feedback we get from visiting job sites is invaluable to us as we continually refine our works and develop new products.