Good day, ladies and gentlemen, and welcome to Enphase Energy Second Quarter 2015 Financial Conference Call. At this time, all participants are in a listen only mode. We will conduct a question and answer session and instructions will follow at that time. As a reminder, this conference is being recorded. I would like to introduce to you today's host for your conference, Ms.
Christina Carrabino. Ma'am, you may begin.
Good afternoon, and thank you for joining us on today's conference call to discuss Enphase Energy's Q2 2015 results. On today's call are Paul Nahi, Enphase Energy's President and Chief Executive Officer and Chris Senesol, Chief Financial Officer. After the market closed today, Enphase issued a press release announcing the results for its Q2 ended June 30, 2015. We are providing an accompanying presentation with our earnings call that you can access in the Investors section of our company's website at www.enphase.com. During the course of this conference call, Enphase's management will make forward looking statements, including, but not limited to, statements related to Enphase Energy's financial performance, market demands for its microinverters, advantages of its technology, market trends, future products and future financial performance.
These forward looking statements are based on the company's current expectations and inherently involve significant risks and uncertainties. Enphase Energy's actual results and the timing of events could differ materially from those anticipated in such forward looking statements as a result of these risks and uncertainties. Factors that could cause results to be different from these statements include factors the company described in its press release of today, especially under the section entitled Forward Looking Statements as well as those detailed in the section entitled Risk Factors of the company's report on Form 10 ks for the year ended December 31, 2014. Enphase Energy cautions you not to place undue reliance on forward looking statements and undertakes no duty or obligation to update any forward looking statements as a result of new information, future events or changes in its expectations. Also, please note that certain financial measures used on this call are expressed on a non GAAP basis and have been adjusted to exclude certain charges.
The company has provided reconciliations of these non GAAP financial measures to GAAP financial measures in its earnings release posted today, which also can be found in the Investor Relations section of its website. Now I'd like to introduce Paul Nahee, President and Chief Executive Officer of Enphase Energy. Paul?
Good afternoon and thanks for joining us today to discuss our Q2 2015 financial results. I'll provide some key highlights and Chris will take us through the Q2 financials and the outlook for the Q3. After that, we'll open up the call for Q and A. We delivered solid financial results for the Q2 of 2015. Demand for our solar energy systems was strong in our core U.
S. Residential markets as well as in Europe and Australia, resulting in a quarterly record of 195 megawatts shipped, an increase of 48% year over year. We reported revenue of $102,100,000 for the Q2 of 2015, an increase of 25% year over year and non GAAP gross margin of 30 point 7 percent. We also reported solid bottom line results including positive non GAAP operating income and net income along with non GAAP diluted earnings of $0.06 per share. Since inception, we've shipped approximately 9,000,000 microinverters or 2 gigawatts of Enphase microinverter systems.
There are currently over 340,000 Enphase systems in 97 countries. In the U. S. Market, 2nd quarter revenue was up 22% year over year as we saw continued strong customer demand for our microinverter system and the expansion of our customer base. Our market share in the U.
S. Residential market excluding Vivint continues to be strong and growing. And with our new customers and partnerships such as our recently announced strategic supply agreement with Sunrun, we expect this trend to continue. As a preferred supplier of solar energy systems to Sunrun for its home solar installation business, Enphase will provide its microinverters to Sunrun's direct installation services business for the first time. Sunrun recognizes that Enphase offers a smart, differentiated and financially compelling approach to clean energy generation that delivers strong economics, excellent system performance over the life of the project.
We look forward to working together with Sunrun not only as a preferred supplier, but as a partner in delivering intelligent energy solutions. During the Q2, we signed an agreement with RePower by Solar Universe that establishes Enphase as the primary solar energy system supplier for RePower's unique integrated solar power and smart home energy system. In the commercial sector, we continue to make headway with our C250 commercial product solution. During the Q2, Enphase and MyGeneration Energy completed and commissioned a 900 kilowatt commercial project featuring our C250 microinverter system. MyGeneration Energy and other commercial installers recognize and appreciate the Enphase C250 value proposition of optimal performance, less wiring and fewer balance of system components and significantly reduced design, labor and overall construction costs.
Turning to our international business. Revenue was up 37% year over year, mainly driven by strong growth in Europe and the APAC region. In Australia and New Zealand, 2nd quarter revenue increased nearly 200% year over year. We continue to view the APAC region as a significant growth area. In addition, we're seeing increasing global interest for our energy management system, which consists of our microinverter, AC battery and load control all managed by our cloud based application Enlighten.
I recently visited with current and potential customers in the U. K, Europe and Australia and came away very impressed with a strong interest in our energy management system to address regulatory requirements, increase the economic benefits of a solar system and enable more energy independence. Interest in our AC battery solution is especially robust. After discussions with customers all over the world, we're confident that our AC battery with its modular architecture and seamless integration into Enlighten will be unique in its simplicity, its ease of installation, performance and cost effectiveness. It's important to note that the anticipated growth of energy storage will continue to increase the value an energy management system.
A home, building or grid employing a system comprised of solar generation, energy storage and load management will require an energy management system to create a total solution. With 100 of thousands of customers already using Enlighten, the path toward total energy management for Enphase customers has already been paved. We'll start testing Now, I'll turn it over to Chris for his review of our financial results. Now, I'll turn it over to Chris for his review of our financial results.
Thank you, Paul. I will provide some more details related to our financial results for the Q2 of 2015 and then I'll provide the business outlook for the Q3 of 2015. As a reminder, the financial measures that I'm going to provide are on a non GAAP basis unless otherwise noted. Total revenue for the Q2 of 2015 was $102,100,000 an increase of 25% compared to the Q2 of 2014 and an increase of 18% compared to the Q1 of 2015. The large year over year growth was driven by strong overall demand for Enphase Energy Microinverter Systems in our core residential and commercial markets as well as further market share gains in our international markets.
As you all know, our revenue growth has been affected by Vivint's transition from a single sourcing strategy with Enphase to a multi sourcing strategy using multiple other inverter vendors. As a result of this headwind, our customer concentration with our historically largest customer has been reduced from approximately 30% of our total revenue in the Q2 of 2014 to approximately 14% of our total revenue in the Q2 of 2015. Due to this strategic shift, revenue from Vivint was down approximately 40% year over year, but revenue excluding Vivint was up over 50% on a year over year basis. Our impressive top line growth outside of Vivint speaks to the continued strength of our business and value proposition with many large, medium and small customers in the residential and commercial solar markets worldwide. We shipped a new quarterly record of 195 Megawatts AC or approximately 2 25 Megawatts DC during the Q2 of 2015, an increase of 48% on a year over year basis and an increase of 21% sequentially.
Megawatts shipped excluding Vivint were actually up approximately 80% on a year over year basis. The 195 Megawatts Ship represented approximately 859,000 microinverters, of which substantially all were our 4th generation microinverter systems. The Enphase M250 represented approximately 35% of all units shipped, up from approximately 30% last quarter. Inverter prices on a price per watt basis were down slightly at approximately 2% sequentially and down approximately 10% year over year on a constant foreign exchange basis, in line with our historical pricing trends. Gross margin for the Q2 of 2015 was 32.7%, exceeding our outlook of 30% to 32% we provided last quarter.
During the quarter, our engineering and operations team continued to execute very well on our product cost reduction plans. Operating expenses during the Q2 of 2015 were $30,300,000 a reduction of 1% compared to the Q1 of 2015. During the Q2 of 2015, R and D expenses were $11,600,000 sales and marketing expenses were $11,500,000 and G and A expenses were $7,200,000 We have been able to keep operating expenses at the same level for 3 quarters in a row at approximately $30,000,000 while continuing to make great progress on many of our R and D projects, which include the development of our AC battery storage technology and energy management system, the 5th generation microinverter system, further product cost reductions and other new and innovative next generation technology building blocks. Going forward, we will continue to practice rigorous discipline in managing our operating compensation expenses and $1,000,000 in severance costs, offset by a favorable $1,000,000 revaluation of the acquisition related contingent consideration liability. We reported another quarter of non GAAP operating income with $3,000,000 of operating income in the Q2 of 2015, a major improvement compared to non GAAP operating income of $6,000 in the Q2 of 2014.
For the Q2 of 2015, non GAAP net income was $2,800,000 or $0.06 per diluted share compared to a non GAAP net loss of $400,000 or a net loss of $0.01 per share
$1 per share in the Q2 of 2014.
On a GAAP basis, net loss for the Q2 of 2015 was $600,000 or a net loss of 0 0.1 dollars per share compared to a GAAP net loss of $3,000,000 or a net loss of $0.07 per share in the Q2 of 2014. In summary, I'm pleased with our financial performance in the Q2 of 2015. The combination of strong top line growth, solid gross margin and flat operating expenses drove significant improvements to our bottom line and profitability. Turning to the balance sheet. We exited the Q2 of 2015 with a total cash balance of $31,900,000 Cash flow from operations was an outflow of $11,800,000 driven primarily by a sequential increase in accounts receivable of $21,400,000 as the business was ramping up during the 2nd quarter and as a result of shipments during the quarter.
Inventory remained approximately flat sequentially at a level of $34,000,000 We will continue to take action to drive down inventory levels during the remainder of the year. During the second quarter, capital expenditures were $2,600,000 and depreciation and amortization was $2,500,000 Cash flow from financing activities was $19,100,000 which included a $17,000,000 drawdown on our working business and as we drop down accounts receivable and inventory levels, I expect to generate positive free cash flows and repay any outstanding amounts on our working capital facility. Now let's discuss our outlook for the Q3 of 2015. We expect revenue for the Q3 of 2015 to be within a range of $100,000,000 to $105,000,000 which is an increase of 1% to 6% compared to the Q3 of 2014. In this outlook, we expect that revenue with Vivint will be down to approximately $5,000,000 in the quarter, which is a decrease of approximately 75 percent year over year.
The non driven revenue at the midpoint of the outlook range is up approximately 25% year over year. We expect gross margins to be within a range of 30% to 32%. We also expect non GAAP operating expenses for the Q3 of 2015 to be flat to up 3% compared to the Q2 of 2015 as a result of certain one time development project expenses during the current quarter. And now I will turn the call back to Paul.
Thanks, Chris. Before we go to Q and A, I'd like to take a moment to highlight the Enphase value proposition and impressive customer list worldwide and the demand for our products is strong and continues to grow. Our unique value proposition as well as the superior quality and reliability of our energy system resonates with customers globally. In the U. S.
Residential market, we currently have strategic partnerships with 4 out of the 5 top installers NRG, Sunrun, SunEdison and Vivint. We also have strategic partnerships with many new and upcoming players and in fact are seeing increasing momentum and growing market share with them. These customers continue to execute well on their growth strategies in the U. S. Residential and commercial markets as well as internationally.
It's clear that Vivint's ongoing inverter diversification strategy is putting downward pressure on our top line growth. But despite this, Enphase continues to grow. We believe that our share of Vivint's business will normalize this quarter after which we expect to continue to see overall growth. Our current customer portfolio is well balanced with large Tier 1 customers as well as with midsized and smaller installers and no one customer accounting for a disproportionate share of our revenue. Recently, there's been a great deal of discussion about competitive pricing.
We certainly recognize the increased pressure on inverter pricing that is affecting all suppliers. Pricing has been and will continue to be very important. While we said this before, it's worth restating that because of our advanced design, semiconductor based technology and proven track record, we have great confidence that the cost of our microinverter system will approach that of common string inverters and be lower than string inverters with optimizers. Ampeze has an exceptional track record of cost reduction and we will continue to reduce costs even further. In fact, our current cost reduction roadmap is more aggressive than ever.
In addition to driving down product costs through innovation and semiconductor integration, a microinverter is uniquely able to leverage scale as well as the growing availability of higher power modules to further accelerate cost and price reduction. We will be providing more details about our product cost reduction roadmap in the coming months. The combination of continued solid growth, aggressive cost reduction, ever increasing performance and reliability and the delivery of a complete energy management solution is proving to be very powerful and will continue to drive further growth with new and existing partners worldwide. We're more excited than ever about the many opportunities ahead. Now, I'll open up the line for questions.
At this time, I am showing no questions. I would like to turn the call back over to Paul Nahi for closing remarks.
Well, thank you very much for joining us on the call today. There may be a mistake. I think there may be some questions online.
Our first question comes from the line of Vishal Shah with Deutsche Bank.
Hey, guys. It's Jeremiah on the line for Vishal. Thanks for taking the question. I was just hoping you could expand a little bit more on the cost reduction front. I know you'd said that at some point you hope to be lower than inverter plus optimizer and competitive with inverters.
Is there any kind of general commentary you could give around that?
Well, what we said is that we are going to be providing a lot more details about that in the coming months. At a high level, what I would say is if you look at the history of Silicon Valley, it is all about cost reduction as a result of semiconductor integration and innovation. Our device, our microinverter is based on a very complex and sophisticated semiconductor design. And I think that what we are seeing right now in terms of cost reduction is nothing dissimilar that we've seen for many years with many other products in Silicon Valley. So we're going to continue that trend.
And as I said, we're going to be sharing with you a lot more details about this in the very near future.
Okay, great. I'll look forward to seeing that. And maybe on a separate topic, as you're expanding more internationally, I know you highlighted Asia Pacific specifically as a growth area. Could you talk about the markets that are being more or less successful there and where the future growth might come from in APAC?
Well, we have a very strong team that's executing extremely well in Australia and we've already expanded into New Zealand and we are still very early in that region. So there's a tremendous amount of market growth specifically in Australia and a growing market share in New Zealand. Having said that and we do not preannounce the introduction of our product into new geographies, but I will say that as you look north in the Asia Pacific region, there are up and coming markets that we are very excited about that our microinverter solution is extremely well suited for and we'll keep you informed as we have more details about that.
Great. Thanks guys.
Thank you. Our next question comes from the line of Edwin Mok with Needham and Company.
Great. Thanks. I'll let him ask the question. So first one actually just follow-up on the APAC sorry on the international front. Two hard questions I guess.
First is, there's recently some change in policy in U. K. Have you seen or do you expect to see any impact to your business there? And then relate to Austrian, the thing that you highlight, I know that you guys had announced cover commercial version of the inverter in the international market. Does that help drive some call it a small commercial growth in those markets?
So in answer to your first question, there has been and I believe still will continue to be some policy shifts markets and there is a lot of market share ahead of us. So we're seeing tremendous success. The brand is growing. The teams are executing very well. And I continue I expect to see continued growth in the U.
K. Market. As for Australia, New Zealand and the commercial markets there, we are actually very active in both the residential and the commercial markets in Australia and New Zealand. We have a slight advantage there in that the product is the same product as opposed to what's required in the U. S.
So we're able to take advantage and leverage the technology we have, leverage the customer base that we have to see continued growth. So as we mentioned on the call, we've seen a 200% year over year increase and we expect to see continued growth in the Australian market.
Great. That's helpful. And then, Chris, I have a question on the OpEx. You mentioned that there is some one time development expense on the Q3. Is that a way you can quantify it?
And also I think SPI is this quarter, right? Did that also contribute to increased OpEx in this
quarter? Yes.
And that's why we guided operating expense to be flat to up 3%. And so it's not a huge amount, but there are some one time expenses in the 3rd quarter that results in a potential small increase of the operating expense.
But do you expect that to revert by the time you get to the 4th quarter then?
Potentially, yes, yes.
Okay. That's helpful. Last question and I'll let the other guys ask. On in the U. S.
Market, you guys announced that you're a new customer like Sunrun and Solar Universe, right? I was wondering those bigger contracts, do you have to give any price concession for those contracts? And as those ramp up, do you expect that to have some impact on your gross margin? Any way you can give us some color on that?
So we're not going to comment on specific pricing for specific customers. We have a very competitively priced product and there is a recognition that the value of a microinverter is unique that a microinverter does produce more energy. It is easier to design, easier to install. It's the most reliable product out there and that value is recognized by our customers. The gross margin that you see reflects the Tier 1 customers as well as the Tier 2s and Tier 3s.
And I think we're going to continue to be able to extract the value of a microinverter as we attract both larger customers as well as smaller ones.
Okay, great. That's all I have. Thank you.
Thank you.
Our next question comes from the line of Philip Chan with Roth Capital Partners.
Hey, guys. Thanks for taking my questions. First off, why did you raise the $17,000,000 debt in the quarter? And what do you see ahead? What kind of share do you see of the U.
S. Residential market in 2016?
Well, Phil, first on the $70,000,000 debt. As you know, we ended last quarter with $27,000,000 of cash at the end of Q1. At the end of the Q2, we had $15,000,000 of net cash. It's actually $30,000,000 of cash with $17,000,000 of debt. As you can see in the 2nd quarter, accounts receivable increased with approximately $21,000,000 mainly driven by the ramp of the business in the second quarter as well as the timing of shipments during the second quarter.
And we kept inventory approximately flat. And so as a result of that, that definitely have an increased working capital requirements and we have a working capital facility there and we used it. As I said before, I do expect in the second half given the seasonality of the business and given that I expect to drive down accounts receivable as well as inventory levels to repay any of those outstanding amounts on the working capital facility.
And in reference to the market share question, what I would say is that we're not going to guide to market share for 2016. But if you look at the existing performance, we have been increasingly successful with small and medium sized installers. We've added Sunrun most recently as a large installer customer and that trend we believe is going to continue.
Great. I have one more question and then I'll jump back in queue. There's been a lot of discussion among investors comparing your storage solution with other offerings in the marketplace. Can you talk about the advantages and disadvantages of your offering versus competitors since yours requires multiple stages of power conversion, while others may only have one stage of power conversion? Thanks.
Sure. There certainly is quite a bit of noise about this. Let me start by saying that the modularity of our solution is very unique and incredibly valuable. When you talk to customers in Australia, in the U. K, in Continental Europe, the ability to right size the storage solution for that specific application for that specific customer is critical in optimizing the return on investment.
With an Enphase solution, you have the exact amount of storage that you need no more, no less. In addition, the simplicity of our solution because we're not encumbered by being tied to the solar system for an Enphase storage solution, you simply one person can hang one device on a wall, plug it in and you now have storage. With our solution, 1 person can install an entire storage system in just a few hours. And because it's not coupled with the solar solution, our installers can and are extremely interested in retrofitting existing installations with an Enphase storage device. So, the simplicity and the ease for the installer and the consumer, I think are very pronounced and unique to our solution.
In addition to that, there are other solutions out there and there are as an example some optimizer solutions out there that in fact have 7 stages of conversion. So if you look at the efficiency of our solution, we will always be more efficient and produce and generate more energy than another solution out there. In fact, if you look at everything from the performance of our battery, which is north of 96% and close to 97% round trip efficiency, compare that to some recently announced battery solutions that are down to 92% round trip conversion efficiency. If you look at the number of cycles that we have over our lifetime, somewhere in the neighborhood of 11,000 versus 5 ks for competitive solutions, it speaks to the support of our system to be able to do multiple cycles every day. So I think in terms of efficiency, we're going to be far more efficient than any other solution.
We're going to be far easier to install and manage. And on top of everything, we will very likely be one of the most cost effective solutions out there. So our discussions with customers around the world are really very exciting and very positive and we're very, very
Our next question comes from the line of Michael Marosi with Avondale Partners.
Hey, guys. Thanks for taking my question. If I look at the revenue guidance that you imply with Vivint being down 75% year over year and your other customers being up I believe you said 25% or more and Vivint being flat or Vivint share being flat in Q3, what does that imply as far as Q4? Should we expect that Q4 revenue should be up sequentially? And would we think in same terms for margins?
Yes. So Michael, we typically only guide 1 quarter at a time. And so I'm not going to make a change here. But historically, if you look at our seasonal trends, we have seen that the 4th quarter is up slightly, flat to slightly up versus the Q3. And so based on the information that we have today and based on what we believe will continue in our Vivint business as well as the non Vivint business That's what we expect for the Q4 as well.
Okay. And then maybe just taking a step back with respect to costs you talk about potentially intersecting or beating traditional inverter technologies. And as we look at the quarter and if we just annualize your run rate of say 200 megawatts, we get to about 800 megawatts. And so that's implying somewhere below 2% of the global installation run rate. So how do you think about just the segment of module level electronics and where kind of segment market share should go over time?
So just focusing on overall segment as opposed to share maybe within the segment.
Right. So it's a good question. I think if you look at the advantages of a microinverter and you look at the fact that we've had such tremendous success despite the fact that we have been priced at a premium and sometimes earlier on at a significant premium over string inverters, it's clear that our customers value the microinverter and value what it brings to the table as we talked about more energy yet again more market share adoption has been pricing. And as I mentioned in the prepared remarks, we get it that pricing is becoming increasingly important. However, as we are able to close that gap and get closer to just plain vanilla string inverters to get under string inverters with optimizers.
We think that the penetration of microinverters in the overall market should increase very dramatically. Not only will new markets and new segments open up, but we should see a very significant increase in market share even in very, very well entrenched markets. So we're very, very bullish that this is the future. And the microinverter as you know is also a precursor to an AC module where you have a microinverter attached to the back of a module which will simplify the installation process yet again. So you couple that with a complete energy management system, I think you have the foundation for the development of a very large portion of the market moving to a microinverter solution.
Thank you. Our next question comes from the line of Christian Carr with Bank of America Merrill Lynch.
Hello. This is Aviat Gomoleil speaking on behalf of Christian Carr. I have a couple of questions. For starters being, can you speak a little about the margin differential between your domestic and international sales?
We've stated before that our margins on the international business, especially taking into account some of the ForEx headwinds that we've recently seen are slightly below average. But there is not a big difference, but it's I would say slightly below average.
Okay. And moving forward, would you be willing to sacrifice profitability for growth? Or are there any situations where you would choose one over the other?
I would view that as these are business decisions that we make every single day that we're constantly looking to optimize the business, which means growing the top line as hard as we can, while maintaining profitability and increasing profitability year on year. Because of our aggressive cost reduction path, because of the value that we produce, because of the multiple markets that we're in, we're able to go in and surgically make that decision on a customer by customer basis and we have done that. And as a result of that, you've seen the share growth that we have had, while increasing profitability. So I guess the short answer
is, absolutely, we make those
decisions every day. And I'm very confident that Okay. And just one more and I'll the next person speak.
Okay. And just one more and I'll the next person's week. Your September Q revenue has improved sequentially from June. And I have a question as to why this next quarter's guidance to the midpoint is kind of flat in comparison to this quarter seeing that sequential revenue has increased over the past few quarters?
Right. And I think we've tried to explain that on the call. It's mainly driven by Vivint's revenue that is down 75% year over year as well as drastically down sequentially as well. If you look at the non dividend part of the business, you can see that we expect strong year over year growth as well as sequential growth in the 3rd quarter versus the 2nd quarter.
Thank you. Awesome quarter. Thank you.
Thank you. Our next question comes from the line of Pavel Molchanov with Raymond James.
Hey, guys. So you've talked about the headwinds relating to Vivint's dual sourcing. Now that they're getting acquired, what do you think will be the impact of the new ownership?
So we have a long standing relationship with SunEdison that goes back years. They have been a great partner for us and we're working with them both domestically and internationally. As you know, we have a very good relationship with Vivint as well. So we're very optimistic that the joint company that post the acquisition, we should be in a very strong position to continue to grow both with the joint company as well as within. So our job right now is to make sure that we are supporting them both again domestically and internationally and providing whatever support we can.
But we are very optimistic about the relationship going forward with the joint company.
Okay. And in relation to the kind of broader inverter landscape and you mentioned the pressure on pricing. How much of that is reflective of the industry pushing to squeeze out cost in advance of the ITC cliff at the end of next year versus just general competitive dynamics among the different vendors?
I think it is a little bit of both. I think there's clearly a sense that people want to take advantage of the ICC as long as it's around and to leverage their strength in the market. But I don't know that what we're seeing is necessarily just unique to the ICC. I think we're I think the nature of this market given the fact that we are effectively competing with coal and gas fired power is going to be cost competitive, is going to be I think is going to challenge suppliers to be very consistent and very aggressive in their both cost and price production strategy going forward. We don't think it's going to be necessarily uniquely a U.
S. Phenomena. We think it's we're going to see this worldwide. And for us, we welcome it. We think this is we believe that as prices come down, markets open up.
As prices come down, the overall TAM for the solar market will continue to increase. And we are better positioned than most to be able to leverage technology to help reduce costs. So I think just all in all, I think you're going to see it globally. And then I think certainly over time, we will see prices sort of asymptote to a particular level, but I think that's probably a year or 2 out.
All right. Appreciate it.
Thanks.
Our next comes from the line of Andy Neto with Dougherty and Company.
Hi. Thanks for taking my call. I'm calling in on behalf of Andrea James. I was wondering if you could expand on the excitement you described for the AC battery solution. And also are there any plans to develop some kind of a solution that would allow Enphase microinverters to connect to non Enphase batteries?
So the excitement is really quite palpable. We're seeing it in Australia, in Queensland, in New South Wales. We're seeing it in the U. K. We're seeing it in Continental Europe.
What's exciting about it is that there is in these areas a real economic case for storage, whether it's a 0 export rule that's happening in Queensland, whether it's the reduction of the feed in tariff in New South Wales, whether it's taking advantage of the FIT program in the U. K, the demand and the desire for self consumption in Continental Europe, all of this requires the coupling of solar generation, distributed generation with storage. And because our solution is so simple, so cost effective and modular that can fit exactly the right place at the right time, as we've talked about, the demand is just really stunning. And the demand is coming for new systems to be built as well as the desire to retrofit existing solar solutions with solar. That's very true in a lot of the regions we're with.
In those areas, we could very well be retrofitting or our partners Obviously, new Obviously, new installs will very likely be a total Enphase solution, but there are plenty of installs out there that don't use Enphase that could benefit from storage. And because we are not coupled to the solar, we can augment those solutions. You asked about the Enphase microinverter with other batteries. The fact is that we have a great battery partner, but we are chemistry agnostic. There is no we don't have to be with a particular chemistry.
There are going to be multiple chemistries out there. Some are going to be outstanding. There's going to be I think it's going to be a very contested space. I think we should see significant cost reductions and price reductions over time. We want to stay nimble and loose.
So while we have an outstanding partner right now that we're very excited to launch with, we are very much agnostic to the battery itself.
Great. Also on cost reduction, do you have a timeline on that end goal of being able to beat those traditional string inverters or at least be competitive with them and beat the DC optimizer based systems?
We're going to be providing a lot more data and a lot more specifics in the upcoming months. Okay. Great. Thank you. Thank you.
Thank you. Our next question comes from the line of Robert Sanders with JET Equity
Partners. Hi, guys. Thanks for taking my call.
Sure.
Just a follow on on the last question about the cost reductions in the coming announcements. I have in my notes that the Gen 5, the bidirectional inverter should be coming to market sometime second half twenty fifteen. Is it fair to assume that those cost reduction conversations will come alongside the launch of the Gen 5 product?
Not necessarily along the launch of the Gen 5, but leveraging the Gen 5 platform to get to those costs absolutely.
And anything you can tell us about the early customer trials of that Gen 5 and how it's going and maybe the progress and time line for the launch this year?
We're very much on track. The testing certification is going extremely well. We plan to launch in the second half of this year and we are right on track to do that. I think it represents a huge leap in technology for Enphase. And as you noted, its bidirectionality is what allows for the creation of an AC battery storage solution.
But in addition to that, it has all of the advanced grid functions that we haven't had in the past that now allow us to enter markets like Italy and Germany and a whole host of new markets as well. So it's we're obviously very excited about it and it's right on track.
Thanks so much guys.
Thanks.
Thank you. Our next question comes from the line of Michael Marosi with Avondale Partners.
Hi, guys. Yes, yes. Thanks for taking my follow on. In the quarter, Chris called out a working capital drag and it looks like there's a lot of cash tied up in inventory quarter over quarter. I wondered if you guys could just provide a little more detail around the nature of that.
I know you expected it to unwind later in the back half, but any more color there would be appreciated.
Yes. So I've talked about that during the last call that as a result of the port issues, we ended up with slightly higher than expected inventory levels in the Q1. We have started to work inventory levels down in the Q2, but only a little bit of a reduction. It was less than $1,000,000 And so we expect to continue to do that in the second half and see some further drastic reductions there on the inventory levels in the second half. The other reason, of course, was the increase in the accounts receivable, which was actually a bigger increased working capital requirements there.
But there as well given the seasonality of our business, we expect to drive down accounts receivable in the second half of the year and as a result of that generate positive free cash flows and repay all the outstanding amounts under the working capital facility.
All right, guys. Thanks a lot for taking the follow-up and great quarter.
Thank you.
Our next question comes from the line of Peter Dice.
Hello.
Hello. Hello. Yes. I missed the first part of the call. Maybe you addressed this earlier, but why was the patent infringement lawsuit dropped versus Enbridge?
I'm sorry. I didn't catch that question.
You may have addressed this earlier. Why was the patent lawsuit dropped versus Enbridge?
I don't know who Enbridge is. So I think you may have the wrong company. Okay.
At this time, I'm showing no further questions. I would like to turn the call back over to Paul Nahi for closing remarks.
Well, first of all, I'd like to apologize. I think there have been quite a few technical difficulties this time and I appreciate your patience in putting up with it. I know it's difficult on this end. But I would like to thank everybody for joining us on the call today and we're going to look forward to speaking with you again next quarter.