Page 124 - Solar Power in Building Design The Engineer's Complete Design Resource
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94 SOLAR POWER SYSTEM DESIGN CONSIDERATIONS
11 Unit protection for polarity reversal
12 Years of warranty by the manufacturer
13 Reliability of technology
14 Efficiency of the cell per unit surface
15 Degradation rate during the expected life span (warranty period) of operation
16 Longevity of the product
17 Number of installations
18 Project references and contacts
19 Product manufacturer’s financial viability
Inverter and automatic transfer system
1 Unit conversion efficiency
2 Waveform harmonic distortion
3 Protective relaying features (as referenced earlier)
4 Input and output protection features
5 Service and maintenance availability and cost
6 Output waveform and percent harmonic content
7 Unit synchronization feature with utility power
8 Longevity of the product
9 Number of installations in similar types of application
10 Project references and contacts
11 Product manufacturer’s financial viability
Note that solar power installation PV cells and inverters that are subject to the
California Energy Commission’s rebate must be listed in the commission’s eligible list
of equipment.
Installation contractor qualification
1 Experience and technical qualifications
2 Years of experience in solar panel installation and maintenance
3 Familiarity with system components
4 Amount of experience with the particular system product
5 Labor pool and number of full-time employees
6 Troubleshooting experience
7 Financial viability
8 Shop location
9 Union affiliation
10 Performance bond and liability insurance amount
11 Previous litigation history
12 Material, labor, overhead, and profit markups
13 Payment schedule
14 Installation warranty for labor and material
