We have had PV installed since late 2013. The first monitoring system was just the inverter output only and then lately, Flukso at which point the power consumption became visible.
The two can be seen here:
The Flukso proves more valuable in terms of identifying consumption/waste but what was noticed initially is heavy shading in the winter (now). I was aware of light shading in summer but the impact was much more severe in winter. So we hired some men with chainsaws and a truck and the garden causing the shading was turned into woodchips. This happened around the 21st and the result immediately obvious.
On the consumption side, I have a comms rack that runs 24/7 as well as a media PC/server. Both these have been designed to be as energy efficient as possible incorporating efficient energy sources such as pico power supply etc., in place of standard power supplies. All nonessential appliances (there's a PE860, packetshaper and a few other things) are off unless needed and the rack reports a combined load of around 120W at idle. Overall baseload for the house is around 300W overnight as a result.
There has been investment in low energy LED lighting and efficient appliances, especially a condenser drier since we use the drier a fair bit. The appliance that consumes the most power is the dishwasher and therefore we run it in the daytime. Next is the oven although it doesn't use as much power as I thought it might. The drier and washing machine surprisingly not much as I thought they might. Electric kettle is a major consumer when it is used. Microwave also but its only used infrequently.
Large flat panel TV's are a big consumer as are big computers running graphics (games) which might consume 3-400W while games are played. The fridge is seen cycling in the evening (I presume) and does not seem to be a major contributor, but I expect it adds up over time.
Our hot water comes from the sun via an Apricus hot water system and the pump is powered by the PV. I changed the initial setting to activate the manifold cooling since it was so hot it was always in shutdown. Now it works much better and maintains the manifold at a sensible temperature and storage temps at about 70C. It never seems to boost even after a few days of cloudy weather. I am very pleased with the performance of our system after I made the change described.
So these are the steps taken to minimise our power use with the Flukso an essential part of the process. Doing this we have saved about 4-10kWh per day easily justifying the investment.