Most recently, Shellagreedto buy Europes biggest biogas producer, Denmark-basedNature Energy, for 1.9 billion.
This comes one month after rival BPannouncedits $4.1-billion plan to buy Archaea Energy, a US-listed biogas producer.
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But whether this renewable energy-generated money will indeed go towardsrenewable energydevelopment is debatable.
After all, oil is still far more profitable than renewables.

Two weeks ago, the so-called Hywind Tampen started power production from its first wind turbine.
Story byIoanna Lykiardopoulou
Ioanna is a writer at TNW.
With a background in the humanities, she has a soft spot for social impact-enabling technologies.
