A couple of my favourite albums are being reissued: The Dukes Of Stratosphear.
Someone was inexpertly practicing scales on a brass instrument nearby. The wind brought the smell of an early spring barbecue.
Many people (such as 1, 2, 3, 4) cite the Hélimax study Analysis of Future Offshore Wind Farm Development in Ontario [PDF] as a good reason not to even measure wind speeds off the Toronto shoreline. I would be quite surprised if most commenters had read it, as it’s not a light read, but there are three basic reasons that the report doesn’t apply:
- The report is not prescriptive; it does not outline the only viable sites in the Great Lakes. Indeed, the very last paragraph of the executive summary says “… it should be emphasized that the sites … selected do not necessarily correspond to the projects currently being developed. This report by no means seeks to disparage any sites currently under development which are not part of the 64 sites selected. There are wind power projects that can be feasibly developed beyond the sites that are identified in the present study.” A statement like that leads me to believe that the report was intended for capacity planning, and not site selection.
- The report specifically excludes Lake Ontario around the GTA on population density, even though it notes “… utilities generally prefer to have power generation close to population centres” [p.10]. Simply put, if Toronto Hydro wishes to bring wind power into Toronto, it can either have local generation where everyone sees it, or remote generation with pylons that everyone can see. Pick one.
- The mesoscale modelling that the report relies upon is unproven offshore: “… the accuracy of mean wind speeds derived from onshore mesomaps is generally assumed to be ±7%, the precision of such maps for offshore applications is not well known” [p.4]. ±7% for a mean wind speed means a lot more than seven percent in energy yield – that’s roughly good enough to tell you where you might want to start doing site selection. Indeed, the report confirms this: “… on-site meteorological measurements are required to perform a truly judicious assessment of the local wind resource and ensuing energy yields of a given site”.
So that about wraps it up for the Hélimax study pertaining to Toronto.
Others have commented that the low capacity factors of the Pickering and ExPlace turbines. Despite that fact that capacity factors for a given site are highly machine specific, there are some issues here too:
- Both sites are near large buildings which disrupt air flow. This issue goes away even a moderate distance offshore.
- Both sites are really demonstrators, and positioned for maximum public exposure rather than generation.
- The Pickering Vestas V80 was a very early model of its type, and needed a lot of TLC to get operating. I wouldn’t call it quite a prototype, but it’s not far off.
- The Pickering turbine is designed for windy (Class I) sites. It has shorter blades (80m diameter) and a bigger generator (1.8MW) than the turbines I’m most familiar with (82m diameter, 1.65MW). It will catch less wind and thus drive the generator less hard (quick, you come up with a better analogy for capacity factor … I couldn’t) than a Class II or III machine.
- The Explace turbine has smaller blades than it was supposed to – the supplier ceased trading before they were able to replace the interim 52m blade set with 58m ones. As the tower was designed for longer blades, the turbine can never be run at full speed or full generation.
- Due to the closure of Lagerwey, the ExPlace turbine has never had what I’d class as an industry-standard maintenance contract. The joint venture of TH and WindShare volunteers directs the maintenance, but there’s no permanent crew like a commercial operation would have.
So put that lidar out in the lake, and let’s see what we’ve got.
Spotted by its burrow on the embankment of the 407 at Keele St.
Question is, would I splash $95 on a Nicole Miller silk tie, or just soup?
She whistles, plays autoharp, and lives locally: Linda Parker Hamilton — The Northern Nightingale.
The cleaner at work threw away one of my My-Kaps, which allow you to reuse your Keurig K-Cups. This is annoying, as I’d just bought two, and only having one is a pain. They never usually tidy my desk (I think I’ve lost three “Please tidy your desk for cleaning” slips in the strata) so this is mystifying and annoying.
It’s either a great tribute to the variety of different bicycles that Batavus produces, or a boneheaded lack of standardization in their product line, but I can’t seem to get a pump from Curbside to fit my bike.
When I test-rode it, it had a Batavus-branded pump. When I got it a week later, no pump. Went back to get a pump; took it home, it was 1cm too short, and would fall out. Took that back. Got a second pump, slightly longer. Took it home; it was 1cm too long. There doesn’t seem to be any rhyme or reason to this.
It’s not as if this is a frame fit pump, where frame size matters. It’s to fit on lugs on a carrier rack. You would have thought that a sensible bicycle would have had a sensible standard …
I ordered one of Marvell’s SheevaPlug Development Kit; wonder when it will arrive? It will make the best mini-server I could ever wish for.
After ferrying Catherine around for another exciting adventure in LibraryQuest, we took my autoharps to Appalachian Instruments in Oakville for a repair. I have half expecting Bob to declare at least one of them a junker, but apparently they’re more than salvageable. Indeed, the older Type A is apparently a rather nice 1950s wood-bar black felt Silvertone, and the Type B, despite the warped top, is a good little player except for a couple of weak springs. Bob’s busy repairing and generally refurbing them, and we should get them back in a week or two. Should we form an autoharp folk duo?
Bob’s the local luminary of the autoharp, and has many models and spares in stock. It’s best to leave a message on the store’s phone, as he’s not always there. He also teaches, and does house calls.
117 Westside Drive, Oakville ON L6K 1P2
Yes, really – a Suzuki monster truck. Oh dear.
number_of_power_adaptor_variants = number_of_power_adaptor_variants + 1
I’m not wild about their idea for DC power strips. The I2R losses would be huge.
Also, dealing with the world of input voltages and frequencies, not to mention the many plug variants, would make the thing huge, heavy and expensive.
But the fact is, there’s already a standard low voltage power adaptor: the USB mini-B.
I’m not sure what made me look at this article on the BBC News website, but when I did, I think I just discovered that one of my friends from Strathclyde University has been murdered.
George Stewart was a mature student from Darvel (or ‘Dervel’, as he insisted it be pronounced) who joined Mechanical Engineering in second year in 1988. He’d worked for de Havilland in Ayrshire, and was a time-served engineer. He was working for one of the big engineering companies (maybe Howden) that were just waning under Maggie’s relentless efforts. George breezed through practical work (especially drawing) but found some of the theoretical stuff more challenging. He was a jovial soul, and good company in a lab or tutorial.
I can’t say for certain that this is the same George Stewart – but Darvel’s a small town, his picture looks the same, and he’d be the right age. Condolences to his family and friends – George was a great guy.
If you know anything, please contact Strathclyde Police Force.
No, he’s not dead. Quite the opposite. Gerald seems to spend a lot of his time lurking flat on the gravel. He was born this way. I think he wants to be a turbot when he grows up.
He spends most of the day hiding. Twice a day at feeding times, though, he’s front and centre – indeed, seeing his wee bright red form lets me know I need to feed the fish.
When he sees me coming near the tank, he starts revving up his stubby tail. When I open the lid, he jets vertically up to the surface (paying scant attention to obstacles and other fish) and frantically scoots around waiting for the flakes. After nomming far more food than such a small fish should really be able to eat, he sinks back down to one of his hiding places.
We’ve had other platies born with similar buoyancy defects, but they’ve never lived as long as Gerald. He seems as happy as a platy could be, and is the only fish that really responds to our presence. Go Gerald!
(and yes, the tank does need cleaning; limescale on the outside, algae on the inside. And it’s blurry, too – long exposure, moving fish, macro depth of field.)