Solar Water Systems

Eligibility Criteria

Eligibility criteria for solar water heaters financed under the REECL Programme



Solar water heaters/systems for hot water generation, direct or indirect, including collectors, storage tanks, control units, piping and with or without associated space heating and/or DHW systems.


Eligibility Criteria:


Flat plate collectors:

Conversion factor: > 0.70, Loss coefficient a1: < 4 W/m² K

Evacuated tube collectors:

Conversion factor: > 0.70, Loss coefficient a1: < 2 W/m² K

Both the conversion factor and the loss coefficient а1 are determined in accordance with EN 12975-2.

The solar water heater/system should come with an energy label indicating  its energy efficiency  (in accordance with EU Ecodesign Directive („ErP Directive”) 2009/125/EC Regulation 814/2014 (minimum efficiency standards for solar water heaters); EU Energy Labelling Directive 2010/30/EU Regulation 812/2013 (energy labelling solar water heaters))

This measure is not applicable for individual apartments in multi-storey apartment Buildings connected to district or central building heating systems without the prior approval of the Sub-project by the heat supplier.


Conformity Requirement:

CE Marking or CE Marking (Solar Keymark) or Certificates of conformity issues by accredited institution in EU.

When conformity is certified by an Accredited Institution, the vendor must submit all drawings, bill of materials, and other pertinent product specifications, on the basis of which the Institution has issued its certification report.