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Once in the grid, renewable energy is impossible to separate from the conventionally generated energy. This makes purchasing of a green certificate equal to purchasing a claim, that the certificate owner consumed energy from the renewable portion of the whole energy in the grid. Therefore certificate
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Green certificates represent the environmental value of renewable energy generated. The certificates can be traded separately from the energy produced. Several countries use green certificates as a means to make the support of green electricity generation closer to a market economy instead of more
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sources. Typically one certificate represents the generation of one
Megawatthour of electricity. What is defined as "renewable" varies from certificate trading scheme to trading scheme. Usually, at least the following sources are considered as renewable:
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bureaucratic investment support and feed-in tariffs. Such national trading schemes are in use in e.g. Poland, Sweden, the UK, Italy, Belgium (Wallonia and
Flanders), and some US states.
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purchase does not affect how much renewable energy was actually generated – only how it was distributed.
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are a tradable commodity proving that certain electricity is generated using
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The Green
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Wave (often further divided into onshore and offshore) and
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Green
Business League – green business certification site
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Green
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112:(often further divided into photovoltaic and thermal)
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286:Green Standard Certificate Scheme
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276:Green Power Network's RECs page
306:Renewable energy certification
161:-Reduction certificates, e.g.
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235:Guarantee of origin
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