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  • flowing
    replied
    Thank you all for the responses. I agree. These are the sales people estimates. They are not to be taken too serious.

    I do plan to stay in my home. I would want to pay 10k up front to knock it down a bit.

    Looking at Google's solar estimate mine seems a bit optimistic.

    Do you guys think it would be best for them to walk the roof and really check to see panel fitting. Then try to negotiate the price down a bit.

    Google's take on my property:

    SmartSelect_20190216-093522_Chrome.jpg
    Last edited by flowing; 02-16-2019, 10:57 AM.

    Leave a comment:


  • JSchnee21
    replied
    Demand for SREC's is volatile and not guaranteed. In NJ as solar production has ramped faster than demand, the legislators have had to continually pass new legislation to accelerate demand to keep the prices up. While not 100% accurate, you can think of SREC's like "Cap and Trade." Legislation requires generators to be an increasing percentage "Green" each year. They need to buy the credits to offset dirty generation sources.

    Last year there were some additional legislation changes which still haven't fully played out yet. Energy costs in NJ are low ($0.11 to $0.14 per kWh residential)and have actually slightly decreased in the 12 years I've lived here. Without SREC's the break even time horizon for solar is very long -- particularly with a purchase price > $3 / W.

    That said, for the past several years, SREC's have been running around $200+ / MWh. Of course past performance is not a guarantee of future performance. So for a system that generates 20MWh / yr, that would be $4000 or more per year IFF things remain more or less the same.

    Historical data here


    If the OP can get a solar loan for 3.9% I'd say that's a pretty good deal. Paying a large chunk of it (bonus time) with cash would be better. Knocking down the price to $2.75 per Watt (not even sure if that is possible in NJ due to labor costs) would be outstanding.

    One other important caveat to note for the OP:

    While in theory homeowner owned solar (not leases, nor TPO's, nor PPA's) should increase the value of your home since it is a capital investment which lowers ongoing operating costs.. In practice, this is not really the case. Most people don't understand solar and this includes most real estate adjusters and lenders. It sounds like you love your home and plan to be there for the long haul. But if not, don't expect to recoup any of your investment when it comes time to sell your house. In fact, some buyers may be turned off. This is mostly due to misunderstandings about how solar works and the bad press that SunRun and others get. Even if you tell them you own it, they may not understand or trust you. A lot of people think they "own" their solar leases, too.
    There are also concerns about long term maintenance and reliability, holes in your roof, and (largely unfounded) concerns about fire and firefighter response.

    All that said, between your electricity offset and SREC's (assuming prices stay more or less the same) you should be able to break even in about 7 or 8 years. So assuming you plan to live in your home for more than 8 years, you should come out ahead. But, solar won't make you rich.

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  • J.P.M.
    replied
    Originally posted by flowing
    About the aesthetics. I choose not to use the front roof. My home has a really nice look and didnt want to affect it. So they would do the back of the roof and one side near my driveway.

    I looks like GPE will use Panasonic panels with SolarEdge 7600 just like you mentioned. You also hit the size 17-18kW.

    I think I want them to do an actual walk on the roof estimate. I feel that this estimate is a little too optimistic.

    Once I make a little progress I will check the options you mentioned on the reporting. My home has a 200a panel.


    s1.JPGs2.JPG JSchnee21
    Without discussing the merits of borrowing/not borrowing, how secure or accurate is that "estimated" SREC amount ? knock that in half or so and it looks like you're losing money.

    Leave a comment:


  • JSchnee21
    replied
    Very nice. I have the Panasonic 330W's myself (37). My roof is tiny so I went with a very high efficiency panel to get the maximum DC kW. I'm surprised they gave you a price right away. Though $3.23/W seems a little high. I paid approx $3.25/Watt myself in Spring of 2017. Compare with a few other quotes / EnergySage and see if you can knock them down a bit.

    The Panasonic's have a nice 25yr warranty (when panel serial numbers are registered with Panasonic). Be sure to upgrade the SolarEdge warranty to 25yrs (GPE probably added this by default). Panasonic has newer 335W and 340W panels now, but these will be more per W. The LG Neon R's are also very nice. But these are a lot more. LG Neon2 is pretty good as well, slightly less than Panasonic.

    na.panasonic.com/us/energy-solutions/solar/hit-series
    Explore LG business solutions that deliver quality products, software solutions, innovative technology, & world class service that meet the needs of your industry.

    Explore LG business solutions that deliver quality products, software solutions, innovative technology, & world class service that meet the needs of your industry.


    I went with a 401K loan. Yeah, Yeah, everyone says not to do it. But I save aggressively for retirement so borrowing ~$50K from myself didn't really make a dent. But I'd rather borrow the money from myself, and it forces me to pay it back within 5yrs

    I do feel like my system "under performs" a bit (maybe it was just my wishful thinking). That is to say, I had hoped to offset 100% but only ended up with ~85%. But I think this is mostly to do with my roofs poor pitch (20%), lots of trees, and it's short wide profile (significant effect as the sun moves across the sky). Macaddict's system in comparison seems to over produce from what I would have expected. So go figure. I think I would have done a bit better if I could have mounted my panels vertical (portrait) as well instead of landscape.

    So I guess what I would say, is that if you have the roof space, squeezing in a couple extra panels might be worthwhile. Having the vendors actually measure is definitely a good call. From Google Maps, at least for my roof, it looked like they could fit more than reality.

    Leave a comment:


  • flowing
    replied
    About the aesthetics. I choose not to use the front roof. My home has a really nice look and didnt want to affect it. So they would do the back of the roof and one side near my driveway.

    I looks like GPE will use Panasonic panels with SolarEdge 7600 just like you mentioned. You also hit the size 17-18kW.

    I think I want them to do an actual walk on the roof estimate. I feel that this estimate is a little too optimistic.

    Once I make a little progress I will check the options you mentioned on the reporting. My home has a 200a panel.


    s1.JPGs2.JPG JSchnee21
    Attached Files

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  • bcroe
    replied
    Originally posted by flowing
    I just had the first company come by GPE. Really nice guy. Dude came in on a
    murdered-out Dodge Challenger.... not what I was expecting for a solar guy.
    Really good guy. He did his sales thing and estimated 52 panels all roof mounted. I have another estimate
    later today. He said there's no point to build a structure. It will just add cost.
    Roof mount is certainly the quick and easy way to build it. But unless you are writing off snow season
    production, there are some advantages to ground mount. You will not be able to tilt up roof mounted
    panels for the low winter sun, or for better snow rejection. And cleaning them is usually impractical. I
    have a list of 44 advantages of ground mounts. Bruce Roe

    Leave a comment:


  • JSchnee21
    replied
    Yeah, my sales experience was a little different (by my choice). I knew what I wanted so I did most of it on the phone and via email. But, yes, the folks that come to measure and install are pretty laid back. Tim DeSevo was my sales rep. Very responsive, flexible, easy to talk to, and full of information. GPE's partner company replaced my roof at the same time which I was able to bundle as site prep as part of my install and rebate.

    Some things to think about:

    1) Solar Edge, I assume? GPE doesn't recommend Enphase. They provide 3rd party service to a lot of solar systems in NJ whose installers have gone out of business. Needless to say they replace a lot of the older Enphase Micros.

    2) JCPL seems pretty flexible/easy going with their interconnect agreement. I had no issues with my 12.2kW array. I assume you're up around 18kW depending on your panel Wattage. You'll definitely need a line side tap for that kind of power. No worries, GPE's electrical sub will take care of this.

    3) When considering different panel options, particularly for a roof mount, take some time to look up the panels on the web and see what they look like. Solar cell color / appearance, back sheet color, frame color, etc. These options will vary depending on the panel MFG, model, and type (e.g residential vs. commercial, etc.). Given your driving selection, i would expect that you'll want the system to look nice on the roof of your home. For example, commodity 72-cell, commercial style panels with silver frames (which GPE often leads with because they are cheaper) won't look as nice as something from LG or Panasonic with black frames. While black back sheets look nice, it does impact productivity as the panels run quite a bit warmer. Of course you will pay more for aesthetics and efficiency (Watts / square meter).

    4) I strongly recommend getting the Solar Edge Consumption monitoring module while you are at it. It's nice to see your real time and historic consumption and production together in the app / website.

    5) In NJ you will also need a dedicated meter for SREC credits (in addition to a bi-directional PoCo meter). Mine is stand alone. But Solar Edge sells a version of their inverters with a "revenue grade" meter inside. They cost about a hundred dollars more, but might save the need for the second (SREC) meter (not sure). Would make for a cleaner install and simplify/lower install cost.

    6) Unless the vendor can get one of the new SolarEdge HD inverters with Wifi (not sure they are released yet) you'll want to run Ethernet to the inverter. Historically only Zigbee, Cellular, and Ethernet were options. Of these Cellular is too slow and limits data detail. Some say Zigbee is unreliable. Others find it okay. Ethernet is best.

    7) Do you have 240V power -- aka 120V Split Phase like 400amp or so? Given the size of your array you're probably looking at two inverters. Either two 7600W or two 10000W
    https://www.solaredge.com/sites/defa...tasheet-na.pdf

    Note that the newer HD version inverters are more prone to clipping that the older A-series (which I have). So depending on your panel layout, number of roof faces, angle, and orientation, you may want to consider 2x10k for example, if you're array is significantly over 15kW.

    Leave a comment:


  • flowing
    replied
    I just had the first company come by GPE. Really nice guy. Dude came in on a murdered-out Dodge Challenger.... not what I was expecting for a solar guy .
    Really good guy. He did his sales thing and estimated 52 panels all roof mounted. I have another estimate later today. He said there's no point to build a structure. It will just add cost.

    Leave a comment:


  • bcroe
    replied
    Originally posted by flowing
    I'm not looking for laying flat panels. I'm looking for cantilever structure like the ones in industrial parking lots. I have enough room to place them and orient them at the correct angle facing south. It will be all about cost. How I can get the structure built.
    The optimum setup for you will depend a lot on how much cloudy weather and snow you experience.
    Things like multiple orientations and summer/winter tilt changes work under clouds here at 42 Lat.
    Bruce Roe

    Leave a comment:


  • J.P.M.
    replied
    Originally posted by flowing
    @J.P.M. This is the exact reason why I joined this place and I'm getting some estimates. I'm not looking for laying flat panels. I'm looking for cantilever structure like the ones in industrial parking lots. I have enough room to place them and orient them at the correct angle facing south. It will be all about cost. How I can get the structure built.
    NOMB or concern, but it's a lot more than about price. After all the impracticalities you'll be learning about, my guess is you may also be in for some sticker shock as well.

    In any case, good luck.

    Leave a comment:


  • flowing
    replied
    @J.P.M. This is the exact reason why I joined this place and I'm getting some estimates. I'm not looking for laying flat panels. I'm looking for cantilever structure like the ones in industrial parking lots. I have enough room to place them and orient them at the correct angle facing south. It will be all about cost. How I can get the structure built.

    Leave a comment:


  • J.P.M.
    replied
    Originally posted by flowing
    Hi guys, just started to research solar.... I dont want a roof based system. I would love some-kind of driveway cover/port. Anyone have experience or options for that. Currently drive two EVs and use lots of electricity which is the reason for looking into solar.

    Thanks!
    You probably don't know it yet but horizontal panel orientation in NJ or most other northern locations isn't really practical - less so in a patio/driveway cover scenarion. Also, what you have for a concept is going to cost more than you may thin k - by a lot. You'll have lower production as well as difficult but necessary snow removal in that orientation. The panels will also act as dirt pans further decreasing production. Any structure over a driveway be most likely require a fair amount of engineering to pass wind design and other criteria as will most likely be required by local building codes.

    Look before you leap. You have the "you could just do this" syndrome. You need an education.

    Leave a comment:


  • flowing
    replied
    I see the message actually made it in.

    Yes we consume at lot electricity. I dont see us getting close to that offset.

    GPE is actually passing-by tomorrow for an estimate! Lets see what they say. I would love to cover my driveway which is long. Lets see what options they provide.

    Thanks again!

    Leave a comment:


  • JSchnee21
    replied
    Thanks flowing


    I'll follow up more later, but the vendor that macaddic and I used was Green Power Energy (GPE)
    greenpowerenergy.com

    I highly recommend them.

    Wow, 24 MWh per year is a lot to try and offset. But GPE is potentially a great partner. The do a lot of commercial work and are used to planning and deploying larger systems.

    You're looking at roughly 15kW to 20kW DC depending on your location, orientation(s), pitch, etc. So that's roughly 40 to 60 panels which will take up a lot of space. Any chance of a ground mount -- this would let you optimize orientation and pitch if you have a large enough plot of land.

    I'm in Monroe Township, Middlesex, NJ.

    My system is also in PVOutput
    pvoutput.org/list.jsp?userid=58372
    Last edited by JSchnee21; 02-14-2019, 12:25 PM.

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  • Mike90250
    replied
    Originally posted by flowing
    Tried responding... The message became unapproved. Maybe due to a URL not sure how to retrieve it.
    Unapproved messages are invisibly held till a moderator releases them. I don't see any in this thread.

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