hi people,
hoping someone can explain why offgrid solar packages are so expensive?
i am wanting to build a 3kw array with mppt controller, couple of small inverters(2000w-500w) and 4x220ah batteries(48v system). may need a diesel generator for back up sometimes.
we have built a large shed that we plan to move into while our house gets built so wanting to mount the panels on the sheds roof(32degrees with good aspect.) this will provide our power needs and hopefully run tradesmens tools for building house.
we are pretty careful with our energy use but never lived off the grid. we likely to run a medium sized fridge, washing machine,(possibly a water pump), led tv, laptop, mobile phone chargers, led or compact fluro lighting.
the location of block is near albany western australia. can anyone tell me if this setup would meet our needs? or if we need to go larger?
i have sourced some prices for individual components which seem alot cheaper then the package deals that seem to be around $30 000!
3kw pv solar array 18x190w mono panels $7200
2x 60amp mppt regulators $700
1500w pure sine inverters x 2 $500
4x220ah $2000
diesel generator $1500
total $11 900
im not sure how much to installation would be but if i am able to help i would expect it would be around $2000? im sure there are a few things i have missed like wiring, panel mounts etc but i would have thought a system of this size would be around $15000.
have i missed something?
if anyone can help with advise or ideas i would really appreciate it or if anyone in the sw of western australia has such a setup or know of installers in the area would be great to hear from you.
Phil
Australia