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Robbrosky

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  1. This is what I get when I change the output to 3.5KwH. Is that OK? What does it actually mean in terms of my thoughts as it just looks like a lot of pretty blue bars to me? Ive 'fag packet' calculated my average KwH usage is around 16 Kwh. This is just the mean average so obviously a lot more in the winter than summer.....although to be fair the monthly electricity bills range from £188 in Dec to £136 in September so not a HUGE difference.
  2. Thanks SteamyTea, I went to the link but could not make heads nor tails of it and could not get anything like your image from it....sorry! I intend to try to use the existing solar panels to run as much (thinking as close to all as possible) of the General Electricity usage in the house (hot water via emersion, Cooking, washing clothes, electric showers etc) when connected to battery storage for evenings (not home really during the day so 80% would be evening use with some morning showers etc) Is this even feasible without having to have a massive KwH battery storage and therefore making it completely not viable from a financial point of view. I thought/think I'm in a good position as the PV part of the system is already there so my expense is on battery storage and installation etc. I was hoping to be able to run all electric side of the house (not heating) from battery storage (taken from solar panels when they can and cheaper rate KwH over night for use next day) Am I being too simplistic and its not really financially viable? Yes, I love our planet too but my wallet also like £ notes in it each month I dont mind a pay back period of 8 years or so. I have the money for a battery system now (which I probably will not have in the future) so my thinking is that I use it for battery storage and then will save around £80/£100 per month off my bills going forward. One other thought that just came to me....maybe better to pay the £7000K off my mortgage instead? Bloody mine field....not even got into how big a battery I need debate.....Ahhh.
  3. Additional thought. My old electricity usage on my previous house was £1800/ year (gas boiler so just normal electricity items used). If I was to get a battery say £6K including installation etc and run everything but the heating (get another gas warm blown air unit to replace existing one). Is my maths below missing anything vital? Assuming I have to buy some off peak elec during the mid winter months to keep the battery with enough juice to run electrical house items (maybe £80/ month for 4 months = £320/year) minus small gain back from feed in rate over the summer. I could potentially save around £1500/ year on my elec bill. Battery cost 6K with installation would give me a payback time of 4 years for the battery then large yearly saving after that. Does this sound correct? Thanks again
  4. Hi all, I live the the very North West of England (on the Scottish border) I have a 3 bedroom house with 12 solar panels on the roof (there when I bought the house so no idea of capacity). What I know about solar you could write in only a few words so any info would be very helpful. House has good levels of insulation. I have been toying with the idea of getting a storage battery and running my warm air heating from that all year round (topping battery up overnight on cheaper rate in the winter when solar panels do not provide enough umph). Off set slightly by small feed in £ through the summer months. I need to replace the Warm air 'boiler/heater' anyway so was going to remove the existing gas one and install an electric one. Not much difference in cost to purchase the 'boiler' if I go Gas or Electric. Currently VERY old gas one installed. Now my question is, Is this the best way of doing it? I know gas is cheaper per KWH than electricity even on night rate electricity but I will have a good few months (Oct, Feb, March, April) where I will need the heating on and can run off free solar stored energy from the battery and/or direct from the panels (as the solar panel should provide enough to keep the battery full). I will also run the emersion for hot water so again similar to the heating but obviously I will need HW all year round. I could just install another gas one and use gas for heating and battery for all other electricity needs (hot water through emersion heater, washing machine, shower etc etc etc) but I wondered if anyone has a similar set up for have any information on anything really . Is it worth it and will it actually pay back the cost of the battery (battery around £5k)? I obviously don't have to buy the panels etc so will have shorter payback than if starting from scratch and have to buy everything. From internet searches the life span of batteries is about 10 years. Any advice as to options I may not have considered would be gratefully received! Thank you!
  5. Thanks Pro Dave. The house is 2002 build so yes just over 20 years old. Not sure about the noise or smell levels of the existing boiler as not in the house yet. It does still work though so a good shout to see how noisy it is and then take a bit off for the noise of a new one.
  6. Good afternoon fountains of knowledge, I am about to move to a 4 bedroom bungalow property where the boiler needs replacing. Exceptionally old, inefficient and outdated. At present it is a system boiler (hot water tank in airing cupboard). This is also over 20 years old so if kept would be replaced (if that's actually needed?) The house is on Oil (no gas) so any replacement would have to be Oil also. The house is Timber Framed with block rendered outside walls My question is what would you fit instead? 1. Like for like but just updated and more efficient? 2. Oil combi boiler inside (are these noisy given the house is timber framed and therefore no solid internal walls to dampen the sound?) 3. Oil Combi boiler outside (the existing boiler is floor mounted next to the outside wall and if an external boiler was fitted it would go the other side of this wall so no major drama with pipes etc) 4. Some other heating system for my budget I have about £5K budgeted for the work so I would not be going down the route of Air source/ground source etc. The house is in Scotland. There are 2 bathrooms in the property both with mixer showers (i.e. not electric showers) I will be living there with my 3 boys although they will only be there every second week so 1 week on my own and the next 4 of us in the house so not huge demands on hot water every day/every week. I am not sure what the water pressure is like so would possibly also look to install a whole house pump to make sure the hot/cold water and showers are decent pressure. So back to my title "What would you do?" also "why would you do it that way" Thank you for any and all input.
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