Posts Tagged With: wind farm

Here She Blows

There are two major factors that afford Hawaii its famously congenial climate: that big, fat temperature moderator known as the Pacific Ocean, and the trade winds. The trades blow from the northeast, though big storm systems can disrupt or even reverse that flow as we saw a week or two ago. But on a typical day the winds around the Big Island appear as they do on this screen snap from a weather app on my phone, taken earlier today:

SmartSelect_20190225-141109_Windy

You might expect from this image that you’d get the strongest and most constant winds at the three vertices where they whip around the edges of the island: the eastern-, northern- and southernmost points. And you’d be right. Today the winds there appear to be blowing at about 15 mph (25 kph), which is somewhat milder than usual. This worked to my advantage yesterday, as you’ll see in a moment.

You might also reason that those would be good places to build wind farms to get some renewable energy action going, and you’d be mostly right about that too. They’ve never done it at the eastern edge, an area called Pahoa that is most famously on the eastern slope of Kilauea volcano. Building a wind farm on the slopes of an active volcano is probably not the best idea, so it hasn’t happened. (That hasn’t stopped people from building homes there though, more than a few of which are currently underneath tens of meters of lava.)

But they have built wind farms at South Point, the southernmost point of the island, and at its mirror image at Upolu Point up at the very north. The South Point installation was an economic failure and was shut down in 2012, though the Mad Max-ish rusting towers, several with missing blades, stand there to this day, as you can see.38446415390_e2610fb019_hBut the Upolu installation near the town of Hawi has been operational since 2006 and generates over 10 MW of power, enough to power a few thousand homes. It has had some hiccups, including a couple of occasions when it had to be shut down when the winds were too strong.

But the winds were mild enough yesterday for me to achieve a goal I’ve sought for the past year, namely flying my drone over the windmills. So here are a few drone photos of the towers. To give you an idea of scale, each blade is about 75′ (23 m) long.

Upolu Point 0977-Edit

Upolu Point 0973

And here’s a 3-minute video flyover, with a guest appearance of the island of Maui on the horizon at about the 0:55 second mark.

You’ll also notice a small runway. Upolu Airport is a very small general aviation airport that, having little infrastructure and being in relatively remote area of the island, does not see a lot of traffic. When we lived here in the 1980’s it was a favorite place of mine to practice my touch-and-go landings, usually landing towards the northeast into the reliable trade winds.

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Categories: Hawaii | Tags: , , , , , , , , , , , , , , , , , | 1 Comment

Kayaking at the End of the World

That’s “End of the World” as in that part of the Kona coastline, not the apocalypse sort. And we weren’t the ones doing the kayaking. And…oh never mind, you’ll see in a moment.

We are enjoying a brief visit from our friends Laura and Brian, who live in Honolulu and whom we usually stay with for a few days during our sojourns here. This time they came to us on the Big Island. Laura is one of my oldest friends, dating back a terrifying 46 years or so, a nice Jewish girl from Massachusetts who fulfilled the lifetime dream of all nice Jewish girls by marrying a Hawaiian. (For the record, poi is kosher, Kahlua pig isn’t. Not that she cares either way.)

We took them down to End of the World this morning to be appropriately awed by the  gigantic crashing waves there, only to find a disappointingly calm sea. However, those ocean conditions were a lot better received by a large group of kayakers, college students from Georgia who are here on some kind of Outward Bound-type of program. I know this because I felt obliged to buzz them with the drone, which prompted an unexpected visit from their tour leader: he walked over to us from the top of the cliff overlooking the kayakers to gawk at the drone, explain who they were and — to my surprise and delight — ask if he could purchase my drone photos and video footage for their publicity material. Being a nice guy and an idiot, I gave them to him for free. Here are a couple of the shots.

Having acquired that smidgen of good karma, we moved on to our next destination: Naalehu, at 19.07° latitude the southernmost town in the U.S.  It’s a sleepy little place where every single business establishment correctly if rather repetitively advertises itself as the Southernmost ______ In The United States; you can fill in the blank with restaurant, barber shop, gas station, funeral home, or whatever. Our particular target was the Punalu’u bakery, which is the southernmost et cetera et cetera.  I wrote about Naalehu and Punaluu in this blog post two years ago, so you can read it and brush up on the details. (Clicking the link will open the post in a new browser tab so you won’t lose your place here.) Punalu’s big attraction is their malasadas, a jelly-donut-like confection of Portuguese origin that will transport you to heaven both figuratively (because of the taste) and literally (because of the calories and cholesterol).

Having pushed our LDL numbers into a blissfully unhealthy range, we moved on to South Point, the actual physical southernmost point in the U.S. at latitude 18.91°. It’s a windswept volcanic coast of lava cliffs overlooking crystal cerulean waters where you can see the coral reefs all the way to the bottom. The actual location is signified by a navigation marker, as you can see here.

The “windswept” part gave me pause, since my drone gets unhappy when the winds reach about 20 mph (32 kph) and I was a little nervous about the thing blowing out to sea. But it handled the conditions without much difficulty, affording me the shot of the navigation marker and this view of the coastline.

One of the bizarrely popular activities on those cliffs is cliff diving, a sport in which I have no desire to participate. There are several metal ladders drilled into the lava at the top of the cliffs near where the cars are parked, so that those daredevils who do take the plunge — invariably testosterone-besotted young males — can climb back up in safety rather than, um, die.

You can tell from the photos that outside of the cliffs themselves the terrain is rolling grassland. Indeed, as you navigate the one-and-a-half lane road south from Naalehu for 12 miles to reach South Point, you pass a number of cattle farms that look like they’d be right at home in the higher elevation cattle ranches on the northern part of the island, or for that matter in Wyoming.

The wind is pretty constant, the trade winds rounding the point as they blow from the northeast. And so it is not at all surprising that the region takes advantage of that with a wind farm, dramatically situated on a ridge as though commanding the seas whilst harnessing the breeze.

 It was about an hour trip home from South Point, where we crashed for a few hours before continuing in the sacred tradition of Eating Too Much While On Vacation. Dinner was at Annie’s, a cheery low-key place overlooking the ocean and billing itself as proffering the best hamburgers on the island. Make a note of that if you come here: they make a pretty strong case for the claim.

 

 

Categories: Hawaii | Tags: , , , , , , , , , , , , , , , , , , , , , , , , , , | 1 Comment

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