Shell has sold hundreds of faulty solar panel systems to low-wage earners in Sri Lanka costing around 30% of their salaries which are financed by loans. Shell is refusing to honour the Warranties because it sold its solar energy business for the most part to Solar World and the rest to Environ Energy Global PTE Ltd. In the Sri Lanka case Shell claims

In October 2007, Shell sold Shell Solar Lanka Ltd to Environ Energy Global PTE Ltd. Specifically in order to protect customer interests; the terms of the transaction explicitly covered the management of all past, present and future liabilities, including warranty issues. Source: Terry Macalister, The Guardian.

Which is the sound of Shell washing its hands – if I brought a system from Shell and it broke I’d expect Shell to fix it not some other company. Environ claims

Solar World will not replace any modules unless it has the appropriate warranty documents. Environ claims those papers were destroyed by Shell prior to the handover to Solar World. Source:
Terry Macalister, The Guardian.

Definitely a case of Shell taking the money and running.