Using The Electricity Grid In Cities As A Source Of Heat

In the process of finding new, low-carbon ways to provide our homes with heat and electricity, it is that one might consider sources that never before came to mind. In London such a source that has been examined by researchers and an electricity network operator are the 2.5 meter wide tunnels that run for many kilometers underneath the city. In each of them are many more kilometers worth of electricity distribution cables, each of which produces so much heat from electric resistance that active cooling is required.

Currently, every 1.8 kilometers there are shafts that lead to the surface, through which cold surface air is brought in and the warm tunnel air is exhausted into the air. The study by London South Bank University researchers and UK Power Networks looked at using this heat directly for heating local houses, replacing the use of gas boilers. This is in effect similar to heating with waste heat from industrial processes, but with noticeable differences.

The thermal power available from each 1.8 kilometer section of tunnel differs between 100 – 460 kW by installing equipment at the top of the shafts. With London looking at using heat from the London Underground for heating in a similar fashion, it would be fascinating to see whether the combined heat from both underground sources could provide the city with a sizeable source of low-carbon heat, while increasing creature comfort.

Hackaday & Tindie UK Tour Adds Milton Keynes

Hackaday and Tindie are on the road in the UK and we want you to grab one of your projects and come hang out! We have three meetups scheduled over the coming week:

Fresh from our Dublin Unconference and following our London meetup which is happening today, Hackaday and Tindie are staying on the road. We’ve already told you about Nottingham on the 18th, and Cambridge on the 19th, to those two we’re adding Milton Keynes on the 23rd.

We’ll be at convening at Milton Keynes Makerspace on the evening of Monday the 23rd, a community hackspace venue with easy access and parking, and a vibrant community of members. It shares an industrial unit with the local Men In Sheds, so look out for their sign. Entry is free but please get a ticket so we know the amount of pizza and soft drinks we need to arrange. Bring along whatever you are working on, we’d love to see one of your projects, whatever it is!

At the end of the month we will also be at Maker Faire UK in Newcastle, Meeting you, our readers, is important to us, and though we can’t reach everywhere we would like to try to get further afield in the future. Please watch this space.

Hackaday And Tindie Are Coming To London On Sunday!

Hackaday and Tindie have arrived in London at the weekend, fresh from our Dublin Unconference. Join us this Sunday afternoon, as we convene at the Artillery Arms, a pub on the northeastern edge of the City. It’s a free event, we ask though that you sign up for it via Eventbrite if you’d like to attend.

We’re following our usual Bring-a-Hack style format, so come along and hang out with members of the London Hackaday community, and if you have a project to bring along then don’t be shy as we’d love to see it. And especially if you have a Hackaday Prize entry to show then we’d particularly like to see it. You never cease to amaze us with the work you do, be it the simplest of hacks or the most technically advanced. Just one thing though, if you bring something, make sure it’s handheld or portable enough to easily sit on a pub tabletop, space may be limited.

In attendance will be Tindie’s [Jasmine Brackett] and Hackaday’s [Jenny List], as well as quite a few of our community regulars. What better way could there be to spend a spring Sunday afternoon in London?

But what if you can’t make London, and face the prospect of missing out on us entirely? Fortunately, this one is not the only meetup we have planned, we’re heading to Nottingham and Cambridge on the 18th and 19th of April, respectively, and might even squeeze in another date if we can.

London Calling: The Hackaday UK Unconference Roundup

A trip to London, for provincial Brits, is something of an undertaking from which you invariably emerge tired and slightly grimy following your encounter with the cramped mobile sauna of the Central Line, its meandering international sightseers, and stampede of besuited commuters heading for the City. Often your fatigue after such an expedition will be that following the completion of a Herculean labour, but just sometimes it will instead be the contented tiredness of a fulfilling and busy time well spent.

Such will be the state of the happy band of the Hackaday community who made it to London this weekend for our UK unconference held in association with our sponsor, DesignSpark. A Friday night bring-a-hack social in a comfortable Bloomsbury pub, followed by Saturday in an auditorium next to one of the former Surrey Commercial Docks for a day of back-to-back seven-minute talks laying out the varied and interesting work our readers are involved in.

Continue reading “London Calling: The Hackaday UK Unconference Roundup”

Hackaday’s London Meetup Was A Corker

Upstairs at the Marquis Cornwallis pub in central London, around 75 Hackadayers convened, ate well, drank well, and were generally merry. Nearly everyone in attendance brought a hack with them, which meant that there was a lot to see in addition to all that socializing to be done.

I spoke with a huge number of people who all said the same thing: that it was fantastic to put faces to the names of the writers, hackers, and other readers. As a writer, I finally got to meet in person some of the people who’ve produced some of my favorite hacks, in addition to most that were totally new to me. I can’t say how often I heard “Oh you’re the person behind that project. I loved that one.” A real sense of the Hackaday community was on display. Continue reading “Hackaday’s London Meetup Was A Corker”

Hackaday London Meet-up This Friday

Hackaday takes over London at the end of this week. Join us on Friday night as we host a meetup at the Marquis Cornwallis, a pub in Bloomsbury.

This is a Bring-a-Hack style meetup, so grab something you’ve been working on to get the conversation flowing as you enjoy food and drink with members of the Hackaday community from the area. Also on hand from the Hackaday Crew will be [Mike Szczys], [Elliot Williams], [Jenny List], [Pedro Umbelino], and [Adil Malik]. We’re consistently delighted by the many and varied projects that show up — we want to meet you and hear about your project no matter how trivial, or involved. We do suggest you bring something handheld though, as tabletop space will be limited.

DesignSpark LogoWe’ve rented the upper floor of the pub and ordered food and fine beverages for all who attend. This is possible thanks to the support of DesignSpark, the exclusive sponsor of the Hackaday UK Unconference.

Tickets for that event have been sold out for ages now, so we’re glad to host a meetup to involve more of the UK Hackaday community. There are still a few left for this Friday Meetup so claim your free ticket now!

The Wrencher On The Road In The UK

Here at Hackaday, we are a team of technical writers who spend our days keeping abreast of the wonderful world of hardware as we write up the interesting things that cross our timelines and serve them up everyone to enjoy. That is however only part of the picture, the other half of the Hackaday family is you, our readers and our community. You are a wonderfully diverse group of people who do some fascinating things, and you are what gives us life.

From time to time, Hackaday makes it out on the road, we have events, we host meetups, and we spend time with you, the community of which we are a part. Of course, our world can be an annoyingly big place at times, so for a lot of us these meetups are too far away. As a Brit, for example, the upcoming Hackaday Superconference in Pasadena, California, is a somewhat unattainable dream without shelling out a significant chunk of the old hard-earned on travel.

In the very short term we must continue to disappoint many of our worldwide readers because we can’t have meetups all over the world and all at once. But we can at least provide succour to our British readers this month, with more than one opportunity to get to know Hackaday writers as we go out on the road.

In the first instance, I’m going to be in Hebden Bridge, Yorkshire this weekend. I’ll be giving a couple of talks, one on Friday at the Wuthering Bytes festival, and the other on Saturday at the Open Source Hardware Camp. I’ll be bringing along the remainder of my stock of Hackaday stickers left over from SHA Camp, and I’d love to see what you’ve been getting up to.

But worry not if you can’t make it to Yorkshire, for there is another chance for Brits to meet us this month. Our London Unconference on the 16th of September may have been a speedy sell-out, but because we have no wish to disappoint those of you who missed out on a ticket we’re also running a bring-a-hack meetup the night before. We’ve hired the Drawing Room at the Marquis Cornwallis, a pub not too far from Russell Square Tube station in London, so come and have a pint with us and show us what you’ve made. Get your skates on, it’s not much more than a couple of weeks away!