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USA: Solar Energy Dries Biosolids in Wastewater Treatment Facility

Submitted by Baerbel Epp on December 6, 2011

 Kent County Regional Wastewater Treatment Facility in Milford (Delaware)As part of its plan to reduce the dependence on fossil fuels, the Kent County Regional Wastewater Treatment Facility in Milford (Delaware), USA, has been using solar energy from a vacuum tube collector field with 317 m2 of gross area for its biosolid drying process since August 2011. The collector field with 66 panels of type SPP-30A was delivered by US-American company Solar Panels Plus. The panels supply the energy for a radiant floor system, which heats the concrete floor of three greenhouses measuring 240 by 80 feet.
Photo: Jim Newton / Kent Country Regional Wastewater Treatment Facility

USA: Solar Thermal SRECs traded in Washington D.C. and North Carolina

Submitted by Baerbel Epp on February 27, 2011

 RPS Policies with Solar/DG Provisions” More and more state governments in the USA approve Renewable Portfolio Standards (RPS) with a certain share of solar energy. An RPS requires utilities to retrieve a certain percentage from renewable sources every year. For example, in the District of Columbo (D.C.), utilities will have to get 20 % of their energy from renewable sources, with 0.4 % of that from solar. The map shows all states with an RPS policy including solar or Distributed Generation (DG).

Heat Transfer Fluid from Corn

Submitted by Baerbel Epp on October 24, 2008

The US-American based renewable system supplier Solar Panels Plus LLC (SPP) has launched an alternative to petroleum-based propylene glycol. The new heat transfer fluid made from corn is completely renewable and biodegradable. “The underlying corn glycol product is made by chemical giant DuPont and we developed our own formula for the production of an efficient heat transfer liquid”, says SPP COO John Williams.

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