The General regulation implementing SDE+ (de Algemene Uitvoeringsregeling SDE+) was amended on 4 February 2013 (Regulation Amending the General Regulation Implementing SDE+ 2013, Government Gazette 2013, 2801). The amendments are related to the Amendment Regulations SDE+ 2013 (Aanwijzingsregeling SDE+ 2013) (Government Gazette 2013, 2815). These provide that the subsidy scheme will open in six phases (in 2012 five phases); the new second phase regards projects with a base amount of EUR 0.08 per kWh. Four new categories have been included in 2013: renovation of hydroelectric power plants, geothermal energy projects with a depth of at least 2,700 metres, green gas production at waste water and sewage treatment plants, manure mono fermentation systems green gas and combined heat and power plants. A total of EUR 3 billion is available. Registration opened at 9 a.m. on 4 April 2013.

The Regulation governing guarantees of origin of electricity produced from renewable resources (Regeling garanties van oorsprong voor duurzame elektriciteit) has also been amended (Government Gazette 2013, 2801).