Optimisers do come at a cost but we believe they are worth the extra investment when building your solar pv system. We would not be comfortable installing your panel system without an optimiser for safety reasons. In the case of a fire or damage to the electrical cabling your optimisers will automatically shut down the output from each individual panel, minimising the risk of electrical shock to you or emergency response teams.
Currently, optimisers on solar panels are not a legal requirement in this country, which we believe is wrong. They are a legal requirement in the US and other European Countries. Something as simple as installing an optimiser could save lives. We believe and hope that the installation of these small, smart devices will become mandatory in the UK. We strongly advise owners of existing panel systems to retrospectively install these devices but anyone considering a new system should not consider anything else.