Ive got questions (last point will be the most important to SE re batteries): 1) Doesnt the "clipping" value-prop means the installer screwed up sizing the inverters. I just dont see silicon cells exceeding 22%. 2) MIs dump all the DC generated per panel into a central source as AC, inc underperforming ones. What does SE's PO system do with the DC from an underperforming panel? 3) Enphase offers a 25yr warranty ergo 25yrs on all DC to AC power. What is the warranty on the SE central inverter (yes, I caught the sorcery of "inverter" as optimizer, and "up to..." which I suspect means 25yrs on SE's POs at panel, but what about the actual inverter in the box?) 4) OMG! 70% capacity after 10yrs? That's terrible! Granted, that's 70% with unlimited cycles, but that kinda use-case seems to be more of an outlier. I wanna know how it compares using industry-STANDARD warranty measures. Because the SE warranty uses a stand-alone value so it can insert the marketing-magic "unlimited" word it's kinda meaningless. Speaking of "industry-leading" those leaders are using LFP (li-ion phosphate) vs your Li-ion NMC, which the internet tells me has a much lower cycle life vs LFP, and LFPs have a much higher run-away temp vs NMC (ergo safer). Isnt LFP the industry-leading tech? And... going back to where I started, I dont get the "dont wanna normally oversize by 200%" statement. If the inverter is properly sized or oversized wouldnt that mean there's no clipping? Also, I think what you're saying behind all the marketing magic words is that by design a DC-coupled solution means all the DC generated at the panel goes straight into the battery (ergo, the round trip efficiency value-prop), and ergo.... I dont know what you mean by "normally dont wanna oversize by 200%) Is something else happening at the inverter? You're not masking a DC-AC-DC-AC conversion that's happening in some quasi-black-box, right? 5) IMPORTANT*** So Im (was at this point) trying to install a Tesla Powerwall and PV at my home. But apparently in ONTARIO the dumb bureaucracy see AC-coupled batteries as POWER GENERATION, ergo installing a battery means I CANT install >5kW of solar cause they see the Tesla as generator of 5kW (net-metering for homes is max 10kW in Ontario for 99.9% of use-cases), which seriously kills the financials for going solar. Is this the case with SE DC-coupled batteries? Oh, and much thanks to BayWa & manufacturers for putting up these product presentations. They are extremely helpful!
Hello, If you'd like, we could have a sales person contact you to discuss these questions in more detail. You could also contact us through solardistribution@baywa-re.ca. Thank you!
Ive got questions (last point will be the most important to SE re batteries):
1) Doesnt the "clipping" value-prop means the installer screwed up sizing the inverters. I just dont see silicon cells exceeding 22%.
2) MIs dump all the DC generated per panel into a central source as AC, inc underperforming ones. What does SE's PO system do with the DC from an underperforming panel?
3) Enphase offers a 25yr warranty ergo 25yrs on all DC to AC power. What is the warranty on the SE central inverter (yes, I caught the sorcery of "inverter" as optimizer, and "up to..." which I suspect means 25yrs on SE's POs at panel, but what about the actual inverter in the box?)
4) OMG! 70% capacity after 10yrs? That's terrible! Granted, that's 70% with unlimited cycles, but that kinda use-case seems to be more of an outlier. I wanna know how it compares using industry-STANDARD warranty measures. Because the SE warranty uses a stand-alone value so it can insert the marketing-magic "unlimited" word it's kinda meaningless. Speaking of "industry-leading" those leaders are using LFP (li-ion phosphate) vs your Li-ion NMC, which the internet tells me has a much lower cycle life vs LFP, and LFPs have a much higher run-away temp vs NMC (ergo safer). Isnt LFP the industry-leading tech?
And... going back to where I started, I dont get the "dont wanna normally oversize by 200%" statement. If the inverter is properly sized or oversized wouldnt that mean there's no clipping? Also, I think what you're saying behind all the marketing magic words is that by design a DC-coupled solution means all the DC generated at the panel goes straight into the battery (ergo, the round trip efficiency value-prop), and ergo.... I dont know what you mean by "normally dont wanna oversize by 200%) Is something else happening at the inverter? You're not masking a DC-AC-DC-AC conversion that's happening in some quasi-black-box, right?
5) IMPORTANT*** So Im (was at this point) trying to install a Tesla Powerwall and PV at my home. But apparently in ONTARIO the dumb bureaucracy see AC-coupled batteries as POWER GENERATION, ergo installing a battery means I CANT install >5kW of solar cause they see the Tesla as generator of 5kW (net-metering for homes is max 10kW in Ontario for 99.9% of use-cases), which seriously kills the financials for going solar. Is this the case with SE DC-coupled batteries?
Oh, and much thanks to BayWa & manufacturers for putting up these product presentations. They are extremely helpful!
Hello,
If you'd like, we could have a sales person contact you to discuss these questions in more detail. You could also contact us through solardistribution@baywa-re.ca.
Thank you!