What is the expected net increase in cash for Q2 despite the negative EBITDA guide
you thinking some of these international awards could continue to trend, especially given the focus that you have here on growing international backlog while the U.S. takes time to recover?
Sean Hunkler -- President and Chief Executive Officer
We certainly see the opportunities in Europe for sure. We see opportunities in Southeast Asia, in Africa and pretty much all around the globe, where we have boots on the ground. In addition, because of the HX acquisition, we think it's going to help really open up the market in China as well. And it's also going to help us in other markets to have a really high quality 1P Tracker from HX as well.
So we're really, frankly speaking, we're excited about the opportunities around the globe. The new opportunities that we talked about came from Southeast Asia, came from Africa. And as I mentioned before, our pipeline is up to 64 gigawatts and half of that now is international, 20% growth internationally so far this year. And we're really quite excited about that.
Let me also have Patrick Cook, our chief commercial officer comment.
Patrick Cook -- Chief Commercial Officer
Yeah, from our perspective, what we're seeing, I'd say, in the last three to four months, definitely an uptick in activity in the European market. And we've had a team on the ground there for about a year developing relationships and partnerships with folks in that region, similar what we did in Southeast Asia, sub-Saharan Africa and Australia. And so we've definitely seen an uptick in the level of activity in terms of bidding in that region, and we hope to be able to take advantage of that activity in terms of project wins because we have those relationships with the EPCs and developers.
Julien Dumoulin-Smith -- Bank of America Merrill Lynch -- Analyst
And then maybe can we talk a little bit about the -- just the EBITDA trend here and balance sheet a little bit further? Just how are you thinking about the cash burn rate? Obviously, in the quarter, you saw some working capital outflow contribute alongside EBITDA burn. Can you talk about how you see that trending in 2Q and 3Q? Obviously, you're talking about an improvement here in the third-quarter timeframe here, obviously, pulling back guidance in the context of having a little bit less clarity in the near-term. So I appreciate the opacity to the situation, but how are you thinking about sort of managing the liquidity side of this? Obviously, 2Q with an EBITDA burn, how do you think about AR in 2Q? And how do you think about the levers that you have as you think about 3Q even?
Sean Hunkler -- President and Chief Executive Officer
So we're definitely seeing progress in AR. I mentioned before at the end of Q1, we had $130 million in receivables, and we've made really good progress in terms of collections on those receivables. And definitely, we'll see a continued improvement in cash. And so honestly speaking, I feel good about the improvement we made even so far in the current quarter, and I expect it to continue.
In addition, we also have the $100 million revolver. It's completely undrawn, and so we have that as well. And again, I feel good about the progress we've made in terms of cash and we'll continue to make. Let me let our CFO, Phelps Morris comment on that as well.
Phelps Morris -- Chief Financial Officer
Yeah. So as Sean mentioned, right, we had some timing issues at the end of Q1, where a number of invoices were due. We've done a really good job on collecting those as we moved in this quarter. We do anticipate for this quarter Q2 that we will be able -- a net increase in terms of cash despite the guide in terms of the negative EBITDA.
So as we talk about with the kind of the second half, just ranges in terms of margins, we do anticipate margins to increase sequentially throughout the year. And so we do have multiple levers, as Sean mentioned, untapped revolver, etcetera, that will help us manage through any liquidity issues.
Sean Hunkler -- President and Chief Executive Officer
So the other thing, too, I would add, Julien is we -- obviously, we have a lot of focu
you thinking some of these international awards could continue to trend, especially given the focus that you have here on growing international backlog while the U.S. takes time to recover?
Sean Hunkler -- President and Chief Executive Officer
We certainly see the opportunities in Europe for sure. We see opportunities in Southeast Asia, in Africa and pretty much all around the globe, where we have boots on the ground. In addition, because of the HX acquisition, we think it's going to help really open up the market in China as well. And it's also going to help us in other markets to have a really high quality 1P Tracker from HX as well.
So we're really, frankly speaking, we're excited about the opportunities around the globe. The new opportunities that we talked about came from Southeast Asia, came from Africa. And as I mentioned before, our pipeline is up to 64 gigawatts and half of that now is international, 20% growth internationally so far this year. And we're really quite excited about that.
Let me also have Patrick Cook, our chief commercial officer comment.
Patrick Cook -- Chief Commercial Officer
Yeah, from our perspective, what we're seeing, I'd say, in the last three to four months, definitely an uptick in activity in the European market. And we've had a team on the ground there for about a year developing relationships and partnerships with folks in that region, similar what we did in Southeast Asia, sub-Saharan Africa and Australia. And so we've definitely seen an uptick in the level of activity in terms of bidding in that region, and we hope to be able to take advantage of that activity in terms of project wins because we have those relationships with the EPCs and developers.
Julien Dumoulin-Smith -- Bank of America Merrill Lynch -- Analyst
 And then maybe can we talk a little bit about the -- just the EBITDA trend here and balance sheet a little bit further? Just how are you thinking about the cash burn rate? Obviously, in the quarter, you saw some working capital outflow contribute alongside EBITDA burn. Can you talk about how you see that trending in 2Q and 3Q? Obviously, you're talking about an improvement here in the third-quarter timeframe here, obviously, pulling back guidance in the context of having a little bit less clarity in the near-term. So I appreciate the opacity to the situation, but how are you thinking about sort of managing the liquidity side of this? Obviously, 2Q with an EBITDA burn, how do you think about AR in 2Q? And how do you think about the levers that you have as you think about 3Q even?
Sean Hunkler -- President and Chief Executive Officer
So we're definitely seeing progress in AR. I mentioned before at the end of Q1, we had $130 million in receivables, and we've made really good progress in terms of collections on those receivables. And definitely, we'll see a continued improvement in cash. And so honestly speaking, I feel good about the improvement we made even so far in the current quarter, and I expect it to continue.
In addition, we also have the $100 million revolver. It's completely undrawn, and so we have that as well. And again, I feel good about the progress we've made in terms of cash and we'll continue to make. Let me let our CFO, Phelps Morris comment on that as well.
Phelps Morris -- Chief Financial Officer
Yeah. So as Sean mentioned, right, we had some timing issues at the end of Q1, where a number of invoices were due. We've done a really good job on collecting those as we moved in this quarter. We do anticipate for this quarter Q2 that we will be able -- a net increase in terms of cash despite the guide in terms of the negative EBITDA.
So as we talk about with the kind of the second half, just ranges in terms of margins, we do anticipate margins to increase sequentially throughout the year. And so we do have multiple levers, as Sean mentioned, untapped revolver, etcetera, that will help us manage through any liquidity issues.
Sean Hunkler -- President and Chief Executive Officer
 So the other thing, too, I would add, Julien is we -- obviously, we have a lot of focu