Browse Forums Eco Living Re: Solar power and hot water 5Nov 02, 2014 8:46 pm Owner Building at Jimboomba Woods in Logan City Qld. Blog : http://bandlnewhomebuild.blogspot.com H1 thread : viewtopic.php?f=38&t=68283 . Re: Solar power and hot water 6Nov 02, 2014 9:08 pm Custom build Northern NSW viewtopic.php?f=31&t=72217 Re: Solar power and hot water 7Nov 02, 2014 9:22 pm TraceyWayne Definitely looking into that energymatters forum, thanks bpratt especially for the lithium iron phos battery option, OH very excited to read that one. How are you going with your system? Still building the house, and won't be getting solar PV or HW installed until much closer to the moving in time. Don't like the idea of "five finger discounts" to the scum that think I should 'donate' it to them. I'm putting on a Apricus 315l 30 evacuated tube system for hot water, which is mid element electric boosted, which will be cheaper to run than a gas boosted system could ever be. It'll start off with a Kaco 6600 grid feed inverter and 24 x 250w panels, the later on get a Selectronic SP-Pro inverter, which will then allow me to get batteries (700Ah LiFePO4) so I can then become a hybrid system. I can then add extra panels to ensure I have plenty to keep the batteries fully charged even on less than perfect days. The SP-Pro controls the system so that batteries won't feed back in to the grid (not allowed to feed back in from batteries), and allows me to use the grid feed inverter. Owner Building at Jimboomba Woods in Logan City Qld. Blog : http://bandlnewhomebuild.blogspot.com H1 thread : viewtopic.php?f=38&t=68283 . Re: Solar power and hot water 8Dec 17, 2014 2:26 pm TraceyWayne Hi, I have been searching for some ideas around solar power and storage. We lived on a yacht at one time and stored the power generated from solar panels into batteries for later use. Presuming this can be done in a house does anyone know where to research this or may have done this themselves? I have searched on this site but having difficulty I also want solar hot water, no gas available, and wonder how to sort panels on the roof and what our requirements may be for both systems. Any help would be much appreciated, Cheers, Tracey Hot water domestic systems smaller element draw 1.5Kw(brand dependant) and normal size house draw 2.5Kw. The real problem is batteries in solar off grid systems and any "true" off grid permanent system should consist a wind turbine too with a "hybrid controller" for both the wind turbine and pv panels. E.G. for a 2.5Kw domestic hot water electric system it would require 3Kw of panels not 2.5Kw because pv panels for most in "usual" environment conditions only output 75% of their maximum rating(or rating Pmax) and the complexity is to operate it for ten years or more on lead acid deep cycle batteries is to use only 15% battery bank AH capacity makes the required Kw/h consumed for the total job or jobs. To understand Solar Wind hybrid off grid (particularly battery systems!) go to this DIY site and read the section about batteries. http://windsolarhybridaustralia.x10.mx/#battoff Also read "Ensuring battery service life" because they are a fiddly point to "size up" but will be rarely touched in ten years or more after install. Re: Solar power and hot water 9Dec 17, 2014 8:28 pm Thanks nicephotog Yep, had a wind generator on the yacht with the PV's and deep cycle batteries. Will have a look at the DIY site, thanks for the tip. Was thinking though about the wind generator in residential area, hopefully quieter than the one on our yacht!! Leaning towards heat pump and 5Kw PV's, payback with evacuated tube HWS & PV's not looking appealing, wonder if we could incorporate with wind presuming ok in residential? Off to research, thanks again Custom build Northern NSW viewtopic.php?f=31&t=72217 Re: Solar power and hot water 10Dec 17, 2014 10:33 pm Unless you live in an area that it is blowing a gale all the time (well not quite a gale), then wind turbines are a waste of time and money. To get any real power generation for off grid systems, you will find it far better value to buy more PV panels instead. Owner Building at Jimboomba Woods in Logan City Qld. Blog : http://bandlnewhomebuild.blogspot.com H1 thread : viewtopic.php?f=38&t=68283 . I want to build a decking to the drawn shape outlined in black. The problem is how close can I build to the gas hot water unit? Will I be able to build around it and be… 0 20220 the sun master is the solar heating to "warm" the water in the tank the S26 is your hot water system which will heat the water (25 degrees?) so with both turned on you… 2 12433 DIY, Home Maintenance & Repair Hi, I've got a brand new (2nd hand) Bosch Hydropower 16H tankless hot water heater. Since it was installed I have noticed it leaks a lot. I took the cover off and it looks… 0 24140 |