Badrinarayanan Kothandaraman
Management
Yeah. So let me start with the microinverters. Demand is quite high, customer demand is quite high there, and I once again go back and attribute it to our high quality and high customer experience. So basically, while I'm not going to quantify how much the demand is higher compared to the high-end of the guidance I already said, it is significantly high. And our constraints basically are coming from the semiconductor components, that's an industry-wide issue right now. There are two specific components that we are constrained on, one is our ASIC that goes into the micro and the other is the AC FET drivers that actually drive the high-voltage FET. There the name of the game is, we are qualifying multiple more sources, so that we have more supply as well as expediting product, and I am in direct touch with the CEOs of those companies and they are helping as much as they can. We expect to get all caught up basically by -- yeah by early April. Our top priority through all of this is to ensure that we take care of customers. So we will do whatever it takes in order to ensure their lines are running and that they have not affected. So that's on the microinverter side. On the storage side, we have enough capacity. We already said that we will -- we have about -- as of last quarter, we had about 50 megawatt-hours of capacity and then as of Q3 of '21, we will have 120 megawatt-hours of capacity. We have enough capacity of the storage side. And on the storage side, once again reflecting back on how we did, we started shipping storage in the third quarter. I'm pretty happy with the ramp. Compared to the third quarter, I did about, or we did about 35% more megawatt hours in Q4 compared to Q3. And for Q1, we do expect to do a similar amount higher than Q4. So let me come to some more statistics on storage, so that you get a flavor for it. Essentially, like what I said, about 360 plus installation install a -- unique installation companies have installed at least one Enphase Storage system. We have trained over 650 unique installation companies. We have trained overall more than 1,200 installation personnel. We -- what we are seeing -- we've learnt a lot in the process, mainly from installers as well as a lot of homeowners, and we are improving them one by one. So although -- yeah, I said in the prepared remarks, I wish we achieved a little bit more, but I think we are doing the right things by fixing these problems. For example, our commissioning time needs work, and we are in the process of improving the commissioning time to sub-24 hours and it is all about -- for us, it is all about taking care of the installer, making sure that the installer's experience is seamless. Ease of doing business is what we are all about. Therefore we will never compromise on the short-term in order to achieve that. So more examples is, very often the installers usually struggle on storage with main panel rewriting and replacement. So that's a big pain point for the installers and we are working on steps to solve that. Ease of doing -- when it comes to other ease of doing business, the homeowners are still in their infancy on learning how to use storage systems. So while the transition from on-grid to off-grid is seamless, the fact it is seamless means that the homeowners do not change their behavior and Enphase needs to do a lot more there to educate the homeowner in the seamless way. This is intelligent notification, intelligent text messaging, intelligent load control, which we are actually working on. And to -- one more thing is to also go back and do the storage design right in the first place. Very often people miss that storage is all about taking care of power property and most of the people miss that. Once again it is we, Enphase needs to take responsibility to do whatever it takes to simplify the installer's ease of doing business. And of course, now I'm coming to the industry changes that are needed, which are permitting needs to be a little bit faster on storage, that's an industry-wide problem, which I'm sure many of our peers and us are going to be working on. And the last one is financing for storage. We need some kind of innovative financing schemes and storage, so that that also starts accelerating overall. And I hope I gave you some flavor, but if I were to summarize, we are growing at a very nice clip, 35% from -- in Q4 compared to Q3. We'll do similar rate in Q1 compared to Q4, and our focus is on the long-term. We will take care of our installers, training and making our storage system easiest to install, that's our focus.