Usually, solar panels have to have space between and around them to accommodate for possible expansion and retraction issues. Still, you should do whatever the manufacturer recommends for that particular brand of solar panels.
[PDF Version]
This technology transforms solar radiation into energy using the solar panels on a spacecraft, which then wirelessly transmit the energy to a receiving ground station.
[PDF Version]
An innovative mobile living unit integrating modular design, lightweight structure, and intelligent systems, specifically tailored for cultural tourism, camping, homestays, and emergency scenarios.
[PDF Version]
Each ISS solar array wing (often abbreviated "SAW") consists of two retractable "blankets" of solar cells with a mast between them. Each wing is the largest ever deployed in space, weighing over 1,088 kilograms (2,399 pounds) and using nearly 33,000 solar arrays, each measuring 8-cm square with 4,100 diodes. When fully extended, each is 35 metres (115 ft) in length and 12 metres (39 ft) wide. Each SAW.
[PDF Version]