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Germany: Solar Heat Costs Less than Oil and Gas in Multi-Family Buildings

Submitted by Baerbel Epp on August 11, 2015
Solar thermal is economically viable in Germany in multi-family buildings – that is the clear message of the Excel-based tool which German solar thermal system supplier Remeha, a brand of the BDR Thermea Group, uses to calculate solar water heater performance at multi-family dwellings. The Excel tool was created for installers and planners to support their offers of solar hot water or space heating for blocks of flats. The tool calculates a kWh price, as well as the investment’s Internal Rate of Return. The solar heat produces the most cost-effective kWh with 43.3 EUR/MWh, assuming a 20-year lifetime. During this period, earnings are double as high as investment costs.

Solar Thermal Cooling: technology, cost and case study (2014)

Submitted by Francesco Gattiglio on May 21, 2015

This document was presented at the International Renewable Energy Agency (IRENA) event on Renewable Energy Applications for Island Tourism, held in Cyprus on 29-30 June 2014.

Design, Development, and Performance Evaluation of Solar Heating System for Disinfection of Domestic Roof-Harvested Rainwater (2014)

Submitted by Francesco Gattiglio on April 23, 2015

This research article proposes the use of a box-type solar heater for the disinfection of domestic roof-harvested rainwater in Ibadan, Nigeria. Solar water heater can be used to pasteurize water thereby destroying bacteria and viruses when heated to temperatures of about 65°C.

Thermal Desalination Driven by an Innovative Salinity Gradient Solar Pond Located in the Coastal Waters of Open Seas (2015)

Submitted by Francesco Gattiglio on April 10, 2015

This presentation, prepared by Dr. Ir. Ing. Dick G. Klaren of Klaren International, proposes the use of a salinity gradient solar pond (SGSP) in coastal waters as renewable energy source for thermal desalination. The document was presented at the CWC Technical Seminars featured at the Saudi Water & Power Forum (SWPF), held between 12 and 14 January in Riyadh, in the Kingdom of Saudi Arabia.

Germany/Denmark: Solar District Heating Prices between 37 and 88 EUR/MWh

Submitted by Baerbel Epp on March 24, 2014
Solites CalculationThe calculation of solar heat prices very much depends on the frame conditions. The chart on the left shows heat prices for a solar district heating system, with costs differing between 37 and 88 EUR/MWh. The best-case scenario - with a 3 % low-interest loan and a 40 % investment subsidy – allows a heat price of 37 EUR/MWh, whereas the worst case without a subsidy and with an 8 % interest rate forces the heat price to levels as high as 88 EUR/MWh. The calculation, which uses the newly developed online tool by German research institute Solites, is based on a 3,000 m² collector field and a 600 m³ storage tank. The tank feeds directly into a district heating network, which covers 9 % of the annual heat demand.
Source: Solites

Global Potential of Concentrating Solar Power (2009)

Submitted by Hans Craen on November 13, 2009

This paper presented at the 2009 SolarPaces Conference in Berlin sets out an analysis of the potential of concentrating solar power (CSP) on a global scale. The paper starts with assessing the level of direct normal solar irradiation needed for CSP plants which is combined with an analysis of the suitable land resources based on various site criteria.

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