Originally posted by GeorgeF
View Post
Announcement
Collapse
No announcement yet.
Solar backup system vs generator
Collapse
X
-
Powerfab top of pole PV mount (2) | Listeroid 6/1 w/st5 gen head | XW6048 inverter/chgr | Iota 48V/15A charger | Morningstar 60A MPPT | 48V, 800A NiFe Battery (in series)| 15, Evergreen 205w "12V" PV array on pole | Midnight ePanel | Grundfos 10 SO5-9 with 3 wire Franklin Electric motor (1/2hp 240V 1ph ) on a timer for 3 hr noontime run - Runs off PV ||
|| Midnight Classic 200 | 10, Evergreen 200w in a 160VOC array ||
|| VEC1093 12V Charger | Maha C401 aa/aaa Charger | SureSine | Sunsaver MPPT 15A
solar: http://tinyurl.com/LMR-Solar
gen: http://tinyurl.com/LMR-Lister -
I agree with Mike. In four hours my freezer doesn't lose more than a degree or two. I can use my phone as a hot spot and I have enough power tool batteries to have enough light to fix a meal and keep my phone charged.
That being said, our public safety power outages here can last for days, so I have a 10 kWhr battery bank that runs a hybrid inverter. I also have a 5.7 kW grid tie system that can be AC coupled so that it could power the home and charge my EVs enough to get them to a nearby public charging station. I don't know the reliability of the grid in Indonesia, but as mentioned in the earlier comment, the backup strategy should reflect the probabilities.
I don't know how to translate VA into kWhrs. For example, I have a 200 Amp electrical service at 240 volts but 10 kWhrs of battery capacity is enough to get me through the night with some margin of safety until my solar starts producing. I don't normally use anywhere close to the capacity of my panel..Last edited by Ampster; 02-13-2020, 01:19 AM.9 kW solar, 42kWh LFP storage. EV owner since 2012Comment
-
Originally posted by Ampster View PostThat being said, our public safety power outages here can last for days, so I have a 10 kWhr battery bank that runs a hybrid inverter. I also have a 5.7 kW grid tie system that can be AC coupled so that it could power the home and charge my EVs enough to get them to a nearby public charging station. I don't know the reliability of the grid in Indonesia, but as mentioned in the earlier comment, the backup strategy should reflect the probabilities.
do you also have a generator standby?Comment
-
Originally posted by GeorgeF View Post
If i understood well, you have chosen for the above setup mainly because frequent "blackout" occurs that can last for DAYS....
do you also have a generator standby?9 kW solar, 42kWh LFP storage. EV owner since 2012Comment
-
Ok, thats great.
Do you think you need your genny if "blackout" occurs during sun peakhours till the next morning or do you in that case reduce your energy consumption to stay within your design limits (DoD) ?Comment
-
Originally posted by GeorgeF View PostOk, thats great.
Do you think you need your genny if "blackout" occurs during sun peakhours till the next morning or do you in that case reduce your energy consumption to stay within your design limits (DoD) ?9 kW solar, 42kWh LFP storage. EV owner since 2012Comment
-
Originally posted by GeorgeF View PostOk, thats great.
Do you think you need your genny if "blackout" occurs during sun peakhours till the next morning or do you in that case reduce your energy consumption to stay within your design limits (DoD) ?
Ampster lives in CA and they have a different set of rules for power purchase from the POCO along with blackouts due to fire hazard.
IMO he has made a good decision to use his EV and the emergency power system. But again everyone has a different reason and financial justification to find the best way to produce power when the grid goes down.Comment
-
Originally posted by SunEagle View Post
IMO he has made a good decision to use his EV and the emergency power system. But again everyone has a different reason and financial justification to find the best way to produce power when the grid goes down.
Imagine one have an EV and is able to charge it free of charge at his work and the distance to his work is not so far. ..........Comment
Comment