Much larger MPPTs as well - able to handle 18kw of PV versus the previous limit of 13,000
Sun rises - newer energy (SRNE HEBP series)
- Thread starter agtcovert
- Start date
davewsail
New Member
That is the question. I still don't know. the 4th is definitely backup but I still don't know if I'm going to just have it in a box or installed.
In a box covered with tinfoil.
Zwy
Emperor Of Solar
For the HEBP series inverter?
For the ASP's, I did 2 load testing videos that are in my build thread. A few things I found, when using a grid parallel connection, PV power is used to run the loads first and it is supplemented by grid power. Excess PV is used to charge the battery. Battery power can be set to have priority over using grid power with the time of use settings.
That is probably why you won't see a time period in the spec sheet. Running off pure battery power, I loaded the pair and a single down heavily and the inverters just ran out of inverter capacity when on just PV and battery power. I never had a shutdown when overloading the inverter but a high inductive load would not start or start completely when overloading the inverters.
The HEBP is a hybrid and will run parallel to grid. I would not worry about the surge rating in some respects as the unit will pull from grid what it needs to start a load. On the ASP, that function was seamless, a heavy inductive load with inverter in parallel was easily started.
Videos for load testing are in my shop build thread.
Zwy
Emperor Of Solar
No different than any other hybrid out there. What is your point? It is rated for 1.5 times the output.
If you want to know for how long, buy one and test it before the grid goes down and then you will have the answer. I test my inverters after install, then I know for certain what will run and what won't. I don't trust the "lab results" you referred to in another thread about a certain brand of inverter. I rely on real world tests and the intended application. Many variables including wire length, wire size, the number of connections and even the busbar ratings will have an effect.
The surge rating of an inverter is what it can do grid down.
If it isn't good enough for your loads, when they start grid down, the inverter will trip and you have no power to anything. The ways to deal with that are to have enough surge capacity, to install soft starts, to put hard starting loads on a panel not backed up by the inverter, or to have some sort of grid down interlock to load shed.
Every hybrid inverter can deal with surge grid up since the grid handles it.
Mike C.
Zwy
Emperor Of Solar
Nothing new there, it also is the rating it can do without any grid connection. Which is how I roll......
You covered some of it but you missed the easiest one, add more inverter power.......
Don't rely on lab test results, always test first in the real world environment like I described.
"No different than any other hybrid out there."