This research paper issued by the Laboratory of Heat Transfer and Environmental Engineering of the Aristotle University Thessaloniki relates to the historic evolution of energy building regulations.

This report was written in cooperation with the Environment California Research & Policy Center and the Frontier Group in 2007.

The report starts with a summary of exactly what solar thermal systems do, how they can have a positive effect on natural gas consumption and stating that the renewed interest in solar hot water can be traced back to the energy crisis of the 1970s.

This report was from the Interstate Renewable Energy Council (IREC) Annual Meeting in October, 2009. The report is broken down to cover state incentives & policy trends, solar installation trends, net metering & interconnection updates & trends, and workforce development and training.

This is a presentation of the Managing Director of the Danish Board of District Heating (DBDH), Mr. Jes B. Christensen on the district heating sector in Denmark.

The presentation gives detailed information on the Danish district heating market in Denmark, since the first years in the 70s until nowadays, with references to the legal framework and the government incentive schemes.

These slides also show how district heating has helped reduce CO2 emissions and make Denmark a key example for energy self-sufficiency in Europe.

This is a letter written by the Utility Solar Water heating Initiative (USH20) to the Florida Public Service Commission in 2008.

USH20 is a coalition of utilities and the solar thermal industry that focuses on implementing cost-effective solar thermal solutions for utilities and customers. Their industry members supply nearly all the SWH equipment being installed today.

This short document, produced by the International Energy Agency, provides a summary of the solar heating and cooling situation in 2009.

The document is divided in different sections: market status; economics; outlook; system related aspects; environmental impact; technology status development; which touch upon different issues ranging from the installed capacity, to solar resources of different countries, drivers and barriers for growth, etc.

This report was issued by the Green Institute in 2008 and discusses the option of a “solar carve-out” to build Minnesota’s solar future.

To develop Minnesota’s renewable sources beyond 25 percent, development of additional renewable energy will be necessary, specifically solar technology.

Last November, South Africa's Department of Minerals and Energy (DME) published the draft of an “Overall Recommended Strategic Framework”. The framework is to come into effect in April 2010. This strategy should help to equip 1 million households with solar water heaters by 2014.