Can I connect solar PV to my storage heaters?
Posted by Chris Rudge on 16 August 2012 at 8:37 am
Q: Can I connect my solar power to my storage heaters, and what are the pros and cons?
A: I would strongly advise that unless you have a large (10kwP) solar PV system, having a diversion unit installed to re-direct excess power to a storage heater during the day will not be economic, mainly as you really will only want that heater working during the winter. Unfortunately your 4kwp system will not provide the required 3kwp during the winter months.
However, there are a number of devices either out on the market now, or will be soon, that work as a low cost EMMA unit, that will send all of your excess power to either an immersion heater or one storage heater. I would advise you to check around this month, as there should be a good selection coming on the market [Chris will review them in due course - Ed]. I'd advise diverting the power to an immersion heater, as you tend to use hot water all year, but space heating only gets used in the winter (when there's less sun).
More information about re-directing and storage excess solar-generated power from YouGen
About the author: Chris Rudge is a qualified electrician who specialises in renewable energy.
If you have a question about anything in the above blog, please ask it in the comments section below.
17 comments - read them below or add one