The Tier rating was developed by a group of financial and analytical companies to determine the investment attractiveness of projects and economic reliability in the field of solar energy. In this article we will talk about Tier1, Tier2, Tier3.
Due to regularly increasing heating tariffs, the use of alternative energy sources in heating systems is becoming more popular every day. In some cases, this type of heating is the only solution.
Solar collectors are devices that, using a special “absorber” coating, collect thermal energy from sunlight and heat a non-freezing liquid - a coolant.