وطبقت بعض الأطراف تعريفات خضراء، تضمن سعرا أعلى لوحدة الكهرباء المتجددة من السعر الدارج في السوق، وذلك على امتداد عقد من الزمن، وما انفكت أطراف كثيرة تبلغ عن استخدام هذه التعريفات (ألمانيا وبلجيكا وسويسرا وهنغاريا).
Many Parties also reported new or revised direct financial incentives, such as grants towards investment in renewable power generation projects, accelerated depreciation on capital invested and preferential interest rates on loans for project financing. Preferential tax treatment was used in many different ways to promote renewables. For example, Canada encouraged manufacturing, processing and mining companies to invest in renewable energy supply (and energy efficiency measures) by allowing investments to be written off against tax on all sources of income.