Photovoltaic system in northern climes to 5.61 kWh/m²/day in the sunniest regions. For large systems, the energy gained by using tracking systems can outweigh the added complexity (trackers can increase efficiency by 30% or more). For very large systems, the added maintenance of tracking is a substantial detriment. Tracking is not required for flat panel and low-concentration photovoltaic systems. For high-concentration photovoltaic systems, dual axis tracking is a necessity. Pricing trends affect the balance between adding more stationary solar panels versus having fewer panels that track. When solar panel prices drop, trackers become a less attractive option. Systems designed to deliver alternating
Rassvet (ISS module) impact on the operation of "Rassvet", it posed a potential threat of releasing debris on orbit. "Source:" "Rassvet" was connected to nadir port of "Zarya" on May 18, 2010. Rassvet (ISS module) Rassvet (; lit. "dawn"), also known as the Mini-Research Module 1 (MRM-1) (, ) and formerly known as the Docking Cargo Module (DCM), is a component of the International Space Station (ISS). The module's design is similar to the Mir Docking Module launched on STS-74 in 1995. "Rassvet" is primarily used for cargo storage and as a docking port for visiting spacecraft. It was flown to the ISS