Can I Use a Tracker and Fixed Mount Together for More Power?

Combining Fixed and Tracker Mounts

To increase power output, you can combine a fixed mount with a tracker mount, also known as a hybrid system. This setup involves using a fixed mount for a portion of the solar array and a tracker mount for the rest. For example, you can use a fixed mount for the north-south axis and a tracker mount for the east-west axis.

Design Considerations

When designing a hybrid system, consider the following factors: the tracker’s axis, the fixed mount’s orientation, and the array’s layout. Typically, the tracker is aligned with the east-west axis, while the fixed mount is oriented on the north-south axis. To optimize energy production, ensure that the tracker’s axis is aligned with the sun’s path during peak hours (usually between 9 am and 3 pm). The fixed mount can be oriented to receive direct sunlight during the morning and afternoon hours when the sun is lower in the sky.

System Configuration and Cost

A hybrid system can be more expensive than a single tracker or fixed mount system, as it requires more complex design and engineering. However, the increased power output can justify the additional cost. For example, a 10 kW hybrid system might consist of a 4 kW fixed mount and a 6 kW tracker mount. To calculate the system’s cost, consider the following rough estimates: a fixed mount costs around $1.50 per watt, while a tracker mount costs around $2.50 per watt. A hybrid system’s cost can range from $2.50 to $3.50 per watt, depending on the configuration and components used.