Installed: SolarFamulus
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Once the SunForte was installed with modules and wired up in series to form two separate 24V systems (each module is rated 12V), we proceeded to set up the SolarFamulus structure. This was a smaller and lighter frame as compared to the SunForte, with 1.5m aluminium rails supported by thin trusses.
The mounting frame:
The simple but effective horizontal-diagonal truss design:
The mounting structure with PV modules:
Instead of using metal plates as foundations for the mounting structure, we tried an alternative in pre-casted concrete slabs. Some drilling had to be done to insert the anchor bolts:
The four concrete slabs were shifted into position, and the SolarFamulus was quickly attached:
Concrete slab are cheap, easy to work with and likely to last long in an outdoor location. These slabs seem to be a much better choice compared to the mild-steel plates below:
Finishing touches for both structures:
The two modules on the SolarFamulus will be wired up to form another 24V system. This would be our third PV system installed at Singapore Polytechnic:
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