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
Historical Advanced Squad Leader module includes rules for Pine Woods, Slope hexsides, and barbed wire fences, as well as modifications of existing rules for stream-hex terrain, village terrain, hillside walls and hedges, and known minefields. One mapsheet, for terrain surrounding Stoumont, Belgium, is included as well as 1 campaign game ("Clash at Stoumont", 19 – 21 December 1944) and 4 standalone scenarios. Scenarios KGP1-KGP4. Prerequisites included the ASL Rulebook and Beyond Valor and Yanks. Kampfgruppe Peiper II (1995) is the second half of the Kampfgruppe Peiper module (commonly abbreviated as KGP II). Acting as a companion to the KGP I module, it depicts the fighting