From April 2010, the newly installed side panels (with Sally photobombing off the stern)

If anyone tries to tell you that investing in solar panels in the Pacific Northwest is a waste of money, like they did us, they're wrong.  And we can prove it.

Three years ago we added a solar panel array and have been tracking the benefits ever since.  At the time, we only carried a single 32 watt panel (original to the boat and dating back to 1999) on top of our radar arch which put out a whopping 2 amps, if that.  Basically . . . a trickler.  Along with our wind generator, which is quiet but equally as ineffective, we could hardly call ourselves self-sufficient. 

Since the early 2000s, the price of solar panels has been decreasing at the same time the technology has been on the rise, along with fuel prices.  So the timing was ideal for making a change.  After (what seemed like) months of research, we purchased three Kyocera 135 watt panels measuring 60 by 26 inches and weighing approximately 30 pounds.  Needless to say, this required a bit of reconfiguring. 

The dodger and bimini on Cambria are canvas and would have required substantial stainless work to accommodate the weight of the panels, one of which would have been shaded by the boom most of the day.  In lower latitudes, shading wouldn’t make such a big impact; but here where the sun is at a 30° angle in the height of summer and approximately 65° in the winter, it does.  So we opted for the easier and (in our opinion) more practical installation and changed out two sections of lifelines (port and starboard) for a solid stainless bar which the panels are mounted on.  When conditions are rough, they lie flat.  But at other times of the day, we’re able to adjust them with several different props to maximize their output. 

Mounting the starboard side panel.

To control the system, we chose a Xantrex 60 amp MPPT with a battery temperature sensor, not because it was our first choice or that our system required the capacity (it’s much bigger than we need and has the ability to add other panels later on).  But because the company manufacturing the one we had originally wanted (a Morningstar 45) was experiencing difficulties sourcing components from their Chinese suppliers.  In the end, we were glad for the change and are very happy with the Xantrax’s performance.

Using the specifications provided by Kyocera, under optimal conditions the panels should generate 120 amp hours of power – 30 amps shy of our average daily consumption.  But we generally see more than that.  During the summer months, they produce 140 to 150 amps, with approximately 15 to 20 amps coming in during the peak hours (noon to four).  On our best day, we banked 172 amp hours and on our worst day, none at all.  But more important than the numbers, we’re not burning fossil fuels to compensate for our desire to watch movies or use the computer.  And equally as important, David’s now a free man and no longer held captive by the boat hour after hour in order to recharge the batteries – most days, the panels do the work for him.

We estimated that we’d recoup the cost of the system after three years, but our expectations were, once again, surpassed.  By the middle of last season, the savings on fuel surpassed the price tag and we’ve been living free (give or take) since then.  One of the greatest expenses to recover was the MPPT, with the materials for mounting coming in a close second.  The panels themselves were the least expensive components, costing around $330 a piece.

David has a meticulous personality and has been tracking their performance for the past three years:  Over the period, they produced a total of 35,815 amp hours (482 kWh).  To date, we estimate that we saved over 900 hours of engine/generator use and approximately 850 gallons of fuel – a monetary savings of $4000.  An excellent investment . . . for the boat as well as the environment.

* Looking at the three graphs, you can clearly point out the days when it rained . . . particularly late in the season.  The mid-range days were generally ones in which we were moving.

Our beautiful girl lounging on the deck in her younger days.

Now that most of our provisioning is done, it’s time to get Sally (the dog) sorted.  As I mentioned in my previous blog, when we’re on the hook we don’t like to stop what we’re doing to buy groceries.  And I really don’t like to carry heavy items (like a 30 pound bag of dog food) from the store to the boat, so we plan ahead. 

Several years ago I started a list of things we need on the boat – including pet supplies – and estimated how much we’d use over the course of our cruise.  Sally’s list is short but equally as important to ours for a successful season, especially nowthat she’s getting older (she’ll be 17 in August). 

Many dogs have sensitive stomachs and don’t like to have their food changed.  We’re lucky in that Sally has a cast-iron belly, but that doesn’t mean I want to settle on a cheap brand of dog food packed with fillers because I can’t find her usual brand on the shelf.  It’s not easy storing that much kibble.  But it’s not impossible, either.  We’re fortunate in that we have an area that we aptly call “the shed” (a.k.a. the pilot berth) that does the trick nicely.  But if I had to resort to the bilges, I would simply break down the larger bags of food into gallon-sized Ziplock bags (doubled!) like I do everything else.    

As an older dog, Sally has some special needs:  Chondrotin and Glucosamine tablets have been part of her daily routine for five years now to help rebuild cartilage.  Fish oil helps keep her coat shiny and reduce inflammation in her joints.  Canned dog food helps make the dry stuff more appealing to her aging sense of smell.  And now that arthritis has set in, we have her on prescription Rimadyl (actually, the bio-equivalent Novox).  This poses us the greatest problem.  Sally’s now required to have her blood checked every six months to make sure her kidneys and liver are functioning properly with the medication.  Because we move around a lot, we decided to make her vet in Wichita, where we spend the holidays, her main veterinarian and have additional test results faxed back to him.  Even though we only drop by once a year, Dr.Bogue’s familiar with our situation and allows us some leeway when it comes to refilling her prescription in quantity and before it’s due.

Doing a good job provisioning for your pet can help provide them with a sense of stability in an environment that changes from day to day.  Every animal is different, but our Sally likes routine and keeping her well-stocked with her favorite supplies is an important part of making sure she’s happy.  And as anyone with a dog aboard will tell you: “if puppy ain’t happy, ain’t nobody happy” . . . or something to that effect.     

 

Sally’s List*:

• Dry dog food (60 pounds)

• Canned dog food (24 cans)

• Treats, treats and more treats (as many as I can squeeze in)

• Chondrotin/Glucosamine (one 300 count bottle)

• Novox (one 180 caplet bottle)

• Pill Pockets (seven 30 count bags)

• Fish Oil (one large bottle)

• Frontline Plus for fleas and ticks (one box of six)

• Doggie bags

• Birthday hats (I couldn’t find a single one in Canada last year and when you have a dog her age, every day deserves a celebration!) 

*This list only represents the items we keep aboard for Sally that are consumable and does NOT include safety equipment or creature comforts.