2kw system over east and west roofs. What are your experiences?

Skintsaver

I'm having A solar array installed 3 panels on West and 3 on East. Giving me a 2kw system.

Looking at my energy bills I use around 2100kwh a year, so quite a low user I'd imagine. 

I'm usually out between 8am to 5pm Mon to Thursday Fri to Sun In and out a bit more during the day, but I don't think my energy consumption changes much over the days. 

What do you think this system may save me?

And how does seg work? 

QrizB

OP has previously asked a similar question over on the Energy board. We've given the basics in that one.

Reed_Richards

QrizB said:

OP has previously asked a similar question over on the Energy board. We've given the basics in that one.

Specifically: https://forums.moneysavingexpert.com/discussion/6373522/2kw-pv-system

and in fact also here https://forums.moneysavingexpert.com/discussion/6373521/2kw-pv-system

QrizB

Skintsaver said:

And how does seg work?

On this point specifically, and borrowing heavily from 70sbudgie's post here:

• your installer will issue you with a MCS Certificate - this confirms that your installation meets minimum standards.
  
• your installer will notify your DNO of your PV installation (G98 notification). The DNO will acknowledge the notification.
• you will send a copy of the DNO acknowledgement and the MCS certificate to your supplier.
• your supplier will apply for an export MPAN for your address, and will arrange installation of a smart meter if you don't already have one.
  

SEG payments are unlikely to amount to a huge amount, given that you'll be trying to use the electricity yourself. If you generate 2000kWh/yr, use half and export the rest at 7.5p/kWh, that's £75/yr.

70sbudgie

After my first year, I calculated my savings - I reckon they were about 2/3 due to reduction in import and 1/3 from SEG.