Re: Monitoring Solar PV installation

[Anders <thehansson@xxxxxxxxxxxxxxxx>]

On 11-01-21 23:48, David Anson wrote:
> We have just had a solar PV system installed - the worst time of the
> year for the UK<g>
>
> I am looking to monitor generated power and currently consumed power
> by use of Hall effect transducers.  In the summer months I am
> expecting to be generating more power than I am using in the daytime
> and want to switch on the immersion heater and heat up my hot water
> when there is spare generating capacity.  How can I do this with X10
> controllers?  Will it need to be controlled by a computer and software-
> based solution or is there an off-the-shelf controller which could be
> programmed to do it for me?
>
> TIA

There are many data logger/controller products out there. Here's one
that might work that both record the data and let you control the heater:
http://www.ezesys.com/products/1/115/eZEio-Controller---Standard.html

You may get a more accurate measurement if you measure both current and
voltage after the inverter with a energy meter instead of just looking
at the current with the Hall effect sensor.

</A>