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avoid damage to the waterproofing layer of the roof.Total weight of the installation is XXXX, the building’s floor bearing strength is XXXX.We will install XXX near “here” to reduce the concentrated load.This is a Class 1 Minor Works according to the Buildings Department’s regulations. We will file the required application for works.Future electricity tariff will increase due to inflation. With proper maintenance and correct operation, photovoltaic panels can last for 40 years. Using photovoltaic power generation to supply electricity for some electrical appliances, your organization may reduce the operation cost to offset the utility main electrical cost increase.There is plenty of sunlight in Hong Kong to generate electricity. Photovoltaic panels are a electricity generating device that produce direct electric current when exposed to sunlight. It is almost totally constructed by semiconductor materials into thin solid-state photovoltaic battery. Since it has no moving parts, it can operate for a very long time with no mechanical wear and tear.Install photovoltaic panels increase the environmental impact awareness to your staff. It helps to promote positively your organization’s image.You expect the power generated by photovoltaic panels to provide electricity for the 2ft T5 fluorescent lamps in the two staircases of 24 floors (total 44 nos.) [點解不是48支]The photovoltaic panels require weekly cleaning with glass cleanser and plain water. Staff should inspect the photovoltaic panels and their fixtures periodically.According to the building and its surrounding condition, the construction method is as follows:The solar panel system typically can last for 40 years. The simple payback for the return on investment is…On DD MM YYYY, a test with 6 nos. of 8” downlight was found satisfactory. Please pay $XXXX for this 6 downlights. Please pay this outstanding amount within 7 days. And we will need to discuss the arrangement for the other replacements.