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Board of Aldermen Page 9
April 12, 2016

UNFINISHED BUSINESS - RESOLUTIONS

R-16-001
Endorsers: Alderman Benjamin M. Clemons
Alderman-at-Large Brian S. McCarthy
ESTABLISHING AN EXPENDABLE TRUST FUND FOR APPROPRIATIONS FOR DOWNTOWN
IMPROVEMENTS AND TRANSFERRING UP TO $170,439.20 INTO THE EXPENDABLE TRUST FUND
Given its second reading;

MOTION BY ALDERMAN CLEMONS FOR FINAL PASSAGE OF R-16-001
MOTION CARRIED

Resolution R-16-001 declared duly adopted.

R-16-012
Endorser: Alderman-at-Large Daniel T. Moriarty
AUTHORIZING PENNICHUCK CORPORATION, PENNICHUCK WATER WORKS, INC., PENNICHUCK
EAST UTILITY, INC., AND PITTSFIELD AQUEDUCT COMPANY, INC. TO BORROW FUNDS FROM
THE NEW HAMPSHIRE DRINKING WATER STATE REVOLVING LOAN FUND

Given its second reading;

MOTION BY ALDERMAN MORIARTY FOR FINAL PASSAGE OF R-16-012
MOTION CARRIED

Resolution R-16-012 declared duly adopted.

R-16-013
Endorser: Alderman-at-Large Daniel T. Moriarty
AUTHORIZING PENNICHUCK CORPORATION AND PENNICHUCK EAST UTILITY, INC. TO ENTER
INTO A LONG TERM LOAN WITH COBANK

Given its second reading;

MOTION BY ALDERMAN MORIARTY FOR FINAL PASSAGE OF R-16-013
MOTION CARRIED

Resolution R-16-013 declared duly adopted.

R-16-014
Endorsers: Alderman-at-Large Brian S. McCarthy
Alderman Richard A. Dowd
Alderwoman Mary Ann Melizzi-Golja
Alderman June M. Caron
Alderman-at-Large Michael B. O’Brien, Sr.
CHANGING THE PURPOSE OF UP TO $600,000 OF UNEXPENDED BOND PROCEEDS FROM THE
BROAD STREET ELEMENTARY SCHOOL BUILDING PROJECT, $159,815 OF UNEXPENDED BOND
PROCEEDS FROM THE SCHOOL ROOF REPLACEMENTS PROJECT AND $228,956.44 OF
UNEXPENDED SCHOOL CAPITAL RESERVE FUND APPROPRIATIONS FROM THE ~~ HIGH
SCHOOLS’ GYM FLOORS PROJECT TO THE SUNSET HEIGHTS ELEMENTARY SCHOOL HVAC
IMPROVEMENTS AND BUILDING RENOVATIONS PROJECT
Given its second reading;

MOTION BY ALDERMAN DOWD FOR FINAL PASSAGE OF R-16-014 BY ROLL CALL

Special Bd. of Aldermen — 08/06/2019 Page 9

So it’s basically our job to figure out what the best end result is, taking all those factors into consideration which
is why we landed on these first kind of few buildings here to kind of strategically maximize both the financial and
environmental benefits to the City.

And just a few examples of pitch roof installations what we are more familiar with seeing in our community is the
flush mounted arrays on these pitched roofs. In the lower right you see a similar standing seam metal roof. It
will rise about 3 inches above the seam so plenty of room for airflow and a very straight forward installation.
Dartmouth College in the upper right also uses primarily standing seam roofs, we have done about 20. So solar
systems have 3 primary components; the solar panels which generate the electricity and DC power, the racking
which is our method of attachment to the building or the ground area and then the inverters. So the inverters
are kind of the work horses of this system. So the inverters take that DC power generated by the solar system
and convert that into usable AC electricity that then gets fed into that building’s electrical system.

So high-level overview of how it works is when those solar panels are generating electricity, the inverters input
that power at the same voltage that building typically would use. So in these cases we are talking about three
phase, 480 volt power. The building will use that solar energy first and any excess power that the building
needs that the panels are not generating will be pulled in from the utility just like it is normally. But as Dan
mentioned, there is also going to be times when the solar panels are generating more power than that building
is using at any given moment and in that case the excess goes out into the grid taking advantage of that net
metering regulation that the Public Utilities Commission has made law and providing credits to that utility
account.

The other really neat thing about the inverter technology and the systems that we have designed here is it gives
us also a very high level of visibility into each individual solar panel. So we are using something called Solar
Powered Module Level Electronics, but basically it provides two key benefits; safety primarily for first responders
in the event of an emergency and then data monitoring access. So what that means is that | am able to see
each individual solar panel in what we call a data monitoring portal. And | am able to make sure that that
individual panel is performing up to our expectations and meeting the warranty obligations as well as our
production estimates. That also provides a ton of opportunity to take that data, which there is a huge amount,
and utilize it in other initiatives in the town. We have had great success with other municipalities by integrating
some of that data that we are able to pull from the solar energy systems into local educational curriculum as well
as helping provide really hard output data to achieve any carbon off-set goals that the City has. So we are
going to be able to provide that.

The other benefit | mentioned is safety. Safety is a major thing that we think about all the time, right? So the
other advantage of these power level electronics is in the event of an emergency, we have one switch, you can
see some disconnects out there. These big gray boxes are all disconnects, one switch gets turned off in every
single solar panel within 30 seconds goes to 0 volt or less than 15 volts so effectively 0. So if there ever was an
incident on that roof where first responders needed to get up there to put out a fire or do anything else, we want
to make sure that they are protected and not working around live PC electricity and these designs take that into
account.

Just a rundown of the major components, we spoke about these, if you’d like to know more just a little more
detail on the two primary components, the solar panels and the inverters | do want to add a word on the
technology we use. It’s hard for me to add one word but long story short, we at ReVision Energy we take our
engineering and system designs extremely seriously. So we are New England based company, we live and
work in these communities. Every solar panel, every inverter is not manufactured equally. We focus exclusively
on what we call and what the industry calls Tier 1 Components. So Tier 1 means that we and our partners have
gone through some pretty strict quality vetting processes, not just on the manufacturing but also on the finance
ability and bankability of that particular company.

Special Bd. of Aldermen — 08/06/2019 Page 10

As on a previous slide that Dan showed, there is really some long term warranties for many of these products;
25, 30 years and a really long commercial life. Well that’s only helpful if that company is around to service that
warranty. So we are very serious in the products that we recommended because ultimately we, ReVision
Energy, are standing behind it. The other advantage we have is we run our own, we call it the Operations &
Maintenance Division so | have a team of 9 Master Electricians who go around and maintain our 8,000 systems
that we have been building for over 14 years. That also gives us some great insight into what does go wrong
with these systems over 10, 15, 20 years so we can then integrate that knowledge into both our component
choices and new system design engineering to try and solve the problems that we are identifying in older
systems. Sorry | couldn’t do that in word.

Mr. Weeks Cheers. We've thrown a lot of info on you in terms of design and engineering. This final slide is a
quick window into the process that our team goes through. Do you want to wrap it up?

Mr. Hasselbeck Yeah so frankly the construction is the easiest part of this project. For the Fire Station | think
once we actually started construction we would be in and out of there in roughly 3 weeks; between 3 and 4
weeks on the other building there. So the bulk of the work that we are doing is right now; the finalizing our
engineering and design, working with the utility on what is called the Interconnection Application. That makes
sure we don’t run into any of those net metering issues. So we do all that stuff. Our structural engineering to
confirm that the buildings are sufficient capacity wise; coordinating with the roofing manufacturers making sure
that warranty gets maintained; procurement you know it is, have you heard about these tariffs? That has made
my life very, very difficult. It is very difficult, but that’s a different meeting. The procurement is another piece that
we have to start very early. So basically the bulk of our work is in those three big orange lines that you see and
then we kind of have anticipated roughly 3 to 5 weeks of actual physical construction once we start. So we are
quite anxious to get moving on these projects in the near term. We have already kind of in a gesture of good
faith we have started the Interconnection Application process. We have started the structural review process
and | have, you know, our vendors you know anxiously awaiting purchase orders for this equipment so we can
kind of meet these construction time lines which actually provide a financial benefit if we get it done and
operational in 2019 which | think you can get into.

Mr. Weeks | think that gives you quite a bit of information but we are happy to take questions regarding the
design and engineering and then we can get into the finances. Yes sir, we can perhaps work our way around.

President Wilshire

| am going to call on people; | am going to start over here with Alderman Clemons. Thank you.

Alderman Clemons

Just a question construction wise can you do this up to when the snow flies or what is your limitation?

Mr. Hasselbeck So yes is the short answer and yes for a variety of reasons. One it is actually really important
for us as a business to provide 12 months employment to all of our co-owners. So we work right through the
winter. What gets challenging once the snow flies is the ballasted flat roofs. So if we were getting close to the
snow season | would make sure that we built that building first and then we would move to the Lake Street Fire
Station second.

Special Bd. of Aldermen — 08/06/2019 Page 11

Alderman Clemons

Ok thank you.

Aldermen Jette

So is the purpose to provide the electrical for the electrical needs of the building on which the solar panels sit
more than generating electricity that could be used elsewhere. | mean I’m wondering why we are putting them
on buildings to begin with, | mean why not put them on like a solar farm, on land. You’d avoid all the problems
with roofs and whether the building can support it and all that stuff.

Mr. Weeks Good questions; we do all of the above. The value of doing rooftop solar is that when you use that
power onsite, beyond the meters sort to speak, you are off-setting full retail priced electricity, power you would
otherwise have to buy from the utility at that moment in time. In practical terms that can mean a premium on a
per kilowatt hour basis of anywhere from 10 to 30%. So it is higher value when used onsite. That said, naturally
when you have multiple acres to work with you get terrific economies of scale and the build costs do come down
commensurate with that. We are pleased to be in discussion, it is still fairly early stage that Deb has facilitated
with the Nashua Airport Authority which has several unused acres to the far west of the runway and that is
certainly a possibility for 2019 where the City could generate multiple megawatts of power to offset the
equivalent of dozens of buildings.

Alderman Jette

Thank you.

Alderwoman Kelly

Yes so you mentioned a couple of times the small customer and | was just wondering is that per each project or
is it combined, if we add more do we end up above that at some point.

Mr. Weeks It is strictly on a per-meter basis. So if a building had multiple meters you could have multiple small
customer generators at that site. So it would not be impacted by adding any future projects in the City.

Alderman Laws

First of all thank you guys this is awesome, what you are doing is can’t be overstated how important the work
you are doing is and | appreciate it. That being said, | am kind of dumb and | have a couple of questions. So
you kind of answered the question | had about snow and it is surprising that there is not technology that exists
that melts the snow off of the solar panel. Does that exist, is it just cost prohibitive?

Mr. Hasselbeck Sure great question and we go back and forth all the time. Long story short, it is not
worthwhile. So there are products and technologies out there which utilizes you know low voltage current to get
up there and melt the snow to keep the snow off the arrays. But as we all know as New Hampshire residents, in
the winter months, you know, December, January, February, that sun may be out two or three hours a day right.
So basically the energy and cost of that energy required to melt that snow is significantly less than the additional
electricity that you would get from having clear solar panels through that time of the year.

Special Bd. of Aldermen — 08/06/2019 Page 12

Alderman Laws

Thank you and speaking of technology, it tells us that 18 months from now there is going to be cheaper or
smaller solar panels right?

Mr. Hasselbeck It tells us that about computers.
Alderman Laws

Ok but it has nothing to do with this technology?

Mr. Hasselbeck It actually doesn't.

Alderman Laws

Is it upgradable if there is new technology that comes out?

Mr. Hasselbeck Sure, awesome question. So I’ve been in the PV Industry for 12 years which actually makes
me like really old for the PV Industry so that’s kind of cool. But in that timeframe we certainly have, don’t get me
wrong, we have seen significant improvement in that technology. But not a huge quantity, nothing like More’s
Law on efficiency of the panel. That efficiency has gone up, certainly from roughly you know 12 to 13%, 10 plus
years ago; to now we are seeing 18 to 19%. But the biggest driver of this explosion in solar energy that we
have experienced in New Hampshire and Nationally is not increases in efficiency, it is reductions in
manufacturing cost. So as that demand has gone up, what we have seen is the manufacturers have ramped up
to meet that demand, significantly reducing the cost.

So while the technology has improved, that has not been the biggest driver there, it is additional manufacturing
capacity and lower costs there. So the solar panels themselves, as Dan mentioned, you know they have a 25
year warranty and a 40 year lifespan. There is very little reasoning from what we’ve seen to update those
panels. You know these things are going to pay for themselves in a few years and then you are just getting free
electricity. And what we would see and this is now me speculating a little bit, but | do expect to see some
improvements in the inverter technology.

So if we think about the system, the solar panels are kind of dumb; it is glass, aluminum and silicon just sitting
there. You know electrons are hopping up and down making power. The brains of the operations is within that
inverter. So | certainly expect, during the lifetime of these systems, to see improvements in that inverter
technology which basically allows them to interact more intelligently with the utility grid; things like demand
response. In those cases the inverters are actually quite easy to swap out. So you don’t have to touch any of
that work on the roof and in 10 or 15 or 20 years if we wanted to improve our inverter technology, that would be
a very easy change.

Mr. Weeks And | will just note, you will see the financials in a moment, we do model a full replacement of the
inverters on each of these systems mid-way through the system life. We just assume that is an expense you
will have at some point during the system life, so we have included that in the financial model.

Special Bd. of Aldermen — 08/06/2019 Page 13

Alderman Dowd

| have a few questions and actually the first one is from something you originally said. If you put them on a roof
and the roof has to be replaced, how difficult is it to have the panels moved and reinstalled and is that
something that comes with the warranty or is that additional cost if the roof has to be replaced, you need the
additional cost allocated to move and reinstall the panels?

Mr. Hasselbeck It is not difficult to do that, but it is time consuming. In the State of New Hampshire 100% of a
solar array needs to be installed or in this case removed by a licensed electrician or someone involved in the
electrical apprenticeship program. So it is labor, it is significant labor that would be an expense. So that is one
of the key reasons why when we started out with this portfolio of 30 plus municipally owned buildings, we
narrowed it down to what we determined was the highest value. Frankly we want to avoid that scenario where
you do have to remove and then reinstall them.

Alderman Dowd

So you want a roof that is got at least a warranty of the same warranty you have with the solar panels?

Mr. Hasselbeck Not necessarily because that’s not foreseeable. So | guess and you know we can get into how
the economics work in a little bit more detail. But these systems do reach a breakeven point well before the end
of their useful life soan. And any power production or electricity savings has that breakeven point, that’s all
gravy essentially. So you know if there is a roof replacement need at year 30 of the solar system, you know,
that solar system had paid for itself multiple times over and you’ve seen those benefits there. What we want to
avoid is the need to replace that roof and the need to remove and reinstall those solar panels within that 15 year
time frame, that’s kind of the break even.

Alderman Dowd

I’m hugely in favor of solar panels but just some questions because we may be building a new school and
putting one on top and cost is an extremely important characteristic. So from a maintenance standpoint you
would have to plan buying a roof say on top of a school, that would normally cost hypothetically say $50,000.00
to replace. It might be double if you’ve got solar on it and you have to move it and reinstall it.

Mr. Hasselbeck Potentially but there’s also things that we or any other solar developer and that roofing
contractor and that roofing manufacturer could do on the front end to basically avoid that need. We just recently
completed a project for the Dover Technical High School; brand new building, brand new roof. We were able to
get involved with the Joint Building Committee early and the architect early and they made some decisions on
the design phase which had a minor increased cost to the roof, but avoided or will significantly reduce future
expenses. Things like backing board and you know millimeter thickness.

Alderman Dowd

So the other question | have is on a year to year basis, how much preventative and correction maintenance has
to be done on the solar system? Who does it and who pays for it?

Special Bd. of Aldermen — 08/06/2019 Page 14

Mr. Hasselbeck Excellent question. So during the term of the power purchase agreement, the owner of the
array pays for that. So in this case that would be an investor group that we’ve done and they would pay me and
my team to come out and do what we call an annual inspection. It is about a 20 page report of things that we
look at both mechanically and electrically to basically do preventative maintenance to maximize the up time and
longevity of this system. We are also on a daily basis, for systems like this, monitoring the production and we
have really excellent visibility into what is going on a per panel basis. So if there is an issue we are able to
identify it remotely and then make a determination if we need to roll a truck to fix it or if we can resolve it
remotely. So that is all handled by the owner of the PPA.

Alderman Dowd

Good answer to go along with a good question.

Mr. Weeks _ | will just note Alderman Dowd, also in the financials that we will get into in a moment we include an
optional O&M Contract were the City to elect upon entering into ownership of the array to continue having
ReVision provide that service. That is a totally optional expense but to be conservative in the numbers we are
assuming you are paying for that and so not having to think about the Operations & Maintenance in the future.

Alderman Dowd

Ok the other question | have is that there is a lot of technology going on, we've just alluded to a little bit. MIT is
doing a lot in the solar panel arrays. They are making them from different products now than they used to. You
need fewer panels now. | have no idea in having read these articles when that is going to happen. If we build a
new school we are 2 years away from a solar panel, minimum. So we don’t know how the technology may
change between then and now. But | know they are looking at like two face solar which uses the reflective light
that goes beyond the panel, gets it coming back. | don’t know if you’ve been involved in that at all?

Mr. Hasselbeck Yep very much so. So those are called, please stop me if | get into the weeds, this is my zone
right here. So those are called bifacial modules. And in some scenarios they make a ton of sense because
they allow us to harvest extra bits of solar energy and get more production. In these specific types of
installations, in the State of New Hampshire with our climate the additional energy that those panels produce do
not justify the additional cost of those panels. But that is specific to these buildings. Where we really like those
bifacial modules is on solar carport designs where now we have instead of maybe 6 to 12 inches between the
back of a panel and a roof surface, we have you know 10 to 12 feet in a nice reflective parking lot surface so we
can really harvest that extra energy. Ora large ground mounted array can be another good opportunity for
those bifacial modules.

Alderman Dowd

Right so and | noticed in the articles it said they like to do them on flat surfaces not angled roofs because of the
way it reflects. Also the other technology that is coming in is are panels that sort of follow the sun to some
degree to increase their efficiency.

Mr. Hasselbeck Another great question, so those are called trackers, they are solar tracking arrays and they
make them that track the access in one way like this and also dual access trackers so they will follow it north
and south and east to west. Those options are out there. In some cases they do make sense, not in these

Special Bd. of Aldermen — 08/06/2019 Page 15

cases because what that does is we are adding significant extra cost to our racking and support systems, which
really must be offset by the additional generation that they provide. So in these power purchase agreement
projects where we do typically have expansive roof or ground spaces, the juice isn’t worth the squeeze.

Alderman Dowd

Ok the other thing that is being discussed in places is having part of the power from the solar panels be able to
charge batteries that can be used especially in the winter when you get some power and they can put it in the
batteries and use it at night for instance. Is that something that you’re involved in?

Mr. Hasselbeck Deeply involved yesterday | was just in Durham with EverSource and UNH talking about their
micro grid initiative. So we are deeply involved in that; we are the largest installer of commercial and residential
battery based systems in New Hampshire and Maine. Right now, today — for these types of projects, that
technology is not cost effective, it actually harms the economics. But what is really great is we are designing all
of our systems to be future compatible with what we call AC Coupled Battery Systems. So your new school in
particular, another 2 years give or take, we are going to see the same downward pressure on battery cost,
manufacturing costs that we’ve seen historically in PV panels. So | could make a convincing argument that
instead of a conventional propane generator for your new school, we should spend that money instead on a
large battery which will provide emergency backup power and also provide additional opportunities for savings
by doing demand response, which the utilities are talking about and we are working on in Massachusetts. So
long story short, yes that’s awesome — not yet, but these systems will be in the future if desired compatible with
the battery.

Alderman Dowd
OK | may have added questions but | will let somebody else ask some.

Mr. Hasselbeck This has been fun for me though.

Alderman O’Brien

Thank you to Mr. Hasselbeck you sparked my interest with the, no pun intended, with the fastening type of
system. Basically what | am concerned about is like you say | want to focus on the ballast system. We do live
in New England and | understand it is the weight of the ballast that holds it to the roof. So what are some of the
engineering, we do get the occasional hurricane, | understand we are not in tornado alley. But then again |
could understand that all bets are off with a tornado, but with the New England Noreaster and everything else
like that how does the ballast system really stand up in this type of weather climate?

Mr. Hasselbeck Yeah really well so we look at you know local snow loads, local wind loads. So the same type
of design criteria that a new building has to be put through, you know with the specific wind loads for this town,
this City, building height is a factor, whether there are parapets or whether it is a flat roof, the proximity of the
solar rays to the edge of the roof. If you saw on our designs, there’s a four foot gap between the edge of the
roof and the beginning of the solar panels, that serves two purposes. One for that maintenance and fire access
if needed; two, it actually significantly reduces the loading on that system. The other thing is that we are not
looking, all these panels are connected in a large horizontal basically. So we get the benefits of this basically
large kind of interconnected entity, instead of just one individual solar panel at a time. So I’d be happy to get
into the weeds on all the calcs that get done to make sure that they don’t blow off, but I’ve never lost one yet
and | sure as heck don’t plan to in downtown Nashua.

Special Bd. of Aldermen — 08/06/2019 Page 16

Alderman O’Brien

And | left my PHD at home so you don’t have to get into the weeds. But it is a concern, New England like they
say, “wait a minute, the weather will change”. To that, do you also look at in a ballast type of system you look at
the insulation of the building that you put it on. | did have a failure of a structure because people at a later date
over-insulated. And when they over insulated then there was no wicking of the snow or no melting and it kept
the snow on until finally the roof caved in. So do you do the usual caveats with that and you look at each
engineering standards as is and not to any architectural changes?

Mr. Hasselbeck You got it, so that’s exactly why we do all of our own project specific, engineering review is part
of our due diligence just to make sure. Because that happens a lot especially with older buildings, is that things
get added. Oftentimes what we see is actually additional HVAC units either hung from rafters or put on top that
weren't included in the original designs. That’s why it is really important to us that we do our own due diligence
just before installation so we capture any changes or alterations to that building that happened post-construction
to make sure that what we are doing doesn’t compromise the structural integrity.

Mr. Weeks | would just add Alderman O’Brien as an interesting test case, a couple years ago Hurricane Sandy
was probably the biggest challenge to install solar. You had a substantial amount of solar penetration in New
Jersey and New York State. There were a number of roofs that came off, but no solar came off roofs. There
were some roofs with solar that were lifted, but | don’t think a single panel was loosed in that particular Super
Storm and we have so far had a clean track record here in Northern New England.

President Wilshire

| have a question about the end of life for these panels, what happens then?

Mr. Weeks Great question briefly and James feel free to add. So the power purchase agreement which we will
get into momentarily here, actually stipulates that if the City opts not to purchase the array, the panels, then the
full installation from the investor partner, it is the investor, the owner of the arrays responsibility to remove the
panels and to return the facility to its prior condition absent normal wear and tear. So that is not the City’s
responsibility unless you choose to own the array. To be honest, we have a so far small test case because the
commercial lifespan of solar equipment is 40 plus years. We have systems that are reaching 40 and slightly
beyond 40 years old in this country and they are still putting out about 80% of their initial Day 1 power. So as of
this point, there is not much a secondary market because there is not much to feed that market. We do certainly
anticipate that in the coming years and certainly decades that will emerge. The primary ingredients in solar
panels are reusable, valuable commodities; glass, silicon, aluminum. Just how they will be repurposed
presumably into new solar panels remains to be seen but that is certainly emerging.

Mr. Hasselbeck And | do think that a better case study is the European Market which is far more established
and mature than the US market and there is a little cottage industry focused on the purchase and recycling of
solar panels and associated equipment at the end of their lives. So again it is not poisonous chemicals, it is
glass, aluminum and inert silicon. So there will be a value and a market for it.

Alderman Lopez

So just two quick questions, the first one is we were talking about how much this would offset expenses in terms
of power use. Given that these are absorbing sunlight coming down on a roof, would there be a reduction in
cooling costs during particularly hot days?

Special Bd. of Aldermen — 08/06/2019 Page 17

Mr. Hasselbeck Yes is the answer which is kind of an ancillary benefit to solar rays because you are right, these
things are designed to suck up solar energy. We have done some really neat studies especially over these past
few weeks where it has been so hot in taking our flare guns and measuring temperatures of the solar panels
versus temperatures of the roof surface underneath. UV rays and heat are two of the biggest factors in roof
wear and tear. So they are much cooler which reduces cooling costs. What we can’t do is quantify exactly how
much cooling load we are going to reduce. So because we can’t quantify it with 100% certainty, we don’t
include that in any of our models. But the benefit is there, it is real. We can show you differences in
temperatures and thermal imaging, but | can’t say this will also save the City X thousands of dollars in cooling
costs.

Alderman Lopez

And just my final question is you had, in discussion with Alderman Dowd, you said other climates have a higher
level of, your implication | think was that there is a higher level of sunlight?

Mr. Hasselbeck Yes it is something we call irradiance levels. So irradiance is the measure of watts per meter
squared but we are not in a terrible spot. The best predictor of solar production is your latitude lines, right? So
your latitude line is a really good predictor so you see down by the equator, that same solar panel will generate
roughly 30% more energy than it will up here in New Hampshire. But here in New Hampshire they still do pretty
good and if you follow the latitude line straight east to Germany; Germany has one of the largest solar markets
in the world and they are able to meet what? Was it 50% plus?

Mr. Weeks On peak, sunny windy days the entire German Economy, the 4" largest economy in the world is
virtually 100% solar and wind powered. They actually have 30% less solar insulation or irradiance than we do
here in New Hampshire at a higher latitude and yet they’ve been able to achieve that substantial benchmark
with a couple decades head start over this region.

Alderman Lopez

So we do OK but basically what you are saying that compared to equatorial regions, New Hampshire is not as
bright?

Mr. Weeks That is true as my wife bemoans often but nonetheless a lot of solar output.
Mr. Hasselbeck Bright enough.

President Wilshire

Commissioner do you have questions?

Fire Commissioner Paul Garant

| have one question and it may be more esthetics than technical but when | saw the inverters, the slide with the
inverters — one | wanted to know are they all mounted externally or are some mounted internally?