Wednesday, 14 April 2021

Solar van

Nice use of all-round solar panels spotted on this go-anywhere camper van.

(Number plate fuzzed out cos privacy.)

Wednesday, 7 April 2021

2 Years On: What Have I Learned

The start of April marked 2 years running fully on solar panels for my kit - neat! It's become fairly routine now, although the routine (and the garden) has been helped a lot by being at home every day 😐 and being able to quickly adjust angles, or not worry so much about rain.

I thought I'd celebrate by getting in some new solar panels - more on this to come, but after some browsing (and noticing that panels seem to have short production runs, and seem to be a bit pricier?) I've gone for some slightly generic 60W MathRose panels, as my last 60W set have been so influential. The new aim is to try running a laptop from the extra set and the big battery that's sitting around. Also, those MathRose ones are cheap.

What have I learnt in those 2 years then? Was it worth it? Here's some quick thoughts on it all.

  1. I've learned a lot about electrics and battery life, of course. Once you dig a little into measuring anything, you rapidly work out what all the symbols like V, A and Wh mean. With a bit more digging (not too much), you figure out how they relate to each other, and then what you can say based on the numbers you have. It's like learning a new foreign language.

    For instance, I can 'comprehend' all batteries much more easily now - the difference between capacity and oomph, for want of a better (read 'scientifically emotional') word. When you're browsing what to get and you're just looking at price, you have no idea what that price means. Now it takes me days to try to figure out what rechargeable AAs to get...

  2. I'm more savvy about what I want to use my phone for. I'm more protective about the apps and data on it. I'm constantly checking battery level and there's a continual voice at the back of my head that questions if I really need to do that thing. Apps get one, maybe two goes at preserving battery but they're straight out if they're too hungry. I mean, I still use my phone probably more than I want to ultimately, but I have 3-4 apps I use regularly, a few background apps to get data on/off, and various apps I either need for life, or which are utility for those handy times I can just get something done quickly. But I know why I want those apps there.

  3. I actually really enjoy setting up the panels and batteries, and taking them down again. It gets me out into the fresh air, even if just for a few moments, and connects me to the birdsong in the morning, and the moon and stars at night. Sometimes I kick myself for forgetting to taken them in, but I also love walking out in the dark.

  4. Snail trails are really bad for panel surfaces. 😧

  5. Harvesting energy, and storing it locally, is a feasible way of running tech. The energy demands of a single device aren't huge, and things like file storage and local networking are pretty feasible. Projects like Low Tech's solar-powered site and the Solar Protocol distributed nodes project keep me hooked on this idea that tech is made to be incredibly efficient, ad-hoc, and opportunistic - based on energy available, rather than making energy to keep things running constantly. We don't need things on all the time - we just started taking it all for granted because it was easier

And probably lots more too. And not enough. I'll try to follow up with what I didn't learn that I would still like to. And get on the case with details about the MathRose panels. (Spoiler: Early results are good.)


Two sets of small solar panels alongside each other


Saturday, 27 February 2021

Journal 2021-02-27: Spring returns to the garden

My shadow being cast onto a green lawn

Spring is bursting through right now - snowdrops and daffodils are enjoying the new blue skies, fresh air kicks into the cold mornings, and the old brown branches are trying out their new shoots for the coming summer.

I've been getting back into garden mode. I'm not a "keen" gardener in the way that many people are - I don't hit up the garden centre every weekend and can't name most of the plants and weeds that surround me. But I'm learning to appreciate a green space more with each seasonal cycle. Reading up on permaculture has given me the confidence to not worry about having to grow things and name things either - the space can thrive by itself, and my relationship with it is no longer one of control, but of borrowing; the land is leasing its energy to me, while I am here, and it is in an overall interest to return it once I'm done.

So I've been chopping back weeds and tufts of growth, and leaving the less woody parts to naturally compost back into the soil. Some of the waste from our guinea pig has been making its way to the waiting veg patch as a form of compost and mulch. And the old tree parts, rescued from one chopped down last year, have been changed from fairy table seats to a layer to block out light on a patch I want to rewild.


Wooden rings cut from a tree lying by a fence

Meanwhile, the batteries are looking fairly full all round and I've been able to charge up most of my kit: the old Kindle and Nexus for reading, and the GBA to continue my Zelda foray, all without much worry about running out.

Little white battery didn't charge up recently despite a good whack of sun, so today I've been testing it with a USB power checker:


Close-up of solar panel hooke dup to battery with USB power monitor

As with the cable checking before, I'm fairly confident now that the connector on this battery is a bit unreliable - connectors get damaged way more than the actual battery tech.

It seems silly to replace a whole battery because the connection is a bit wobbly though. Are there good options for fixing up a connector? I've opened up a battery before, but it's not always easy (for good reason). What advice and knowledge should I gather and learn at this point?

Friday, 29 January 2021

Journal 2021-01-29: Lunacy

People think solarpunk is all about power from the sun. But every day that I put out the panels, I get to wander out into the dark grass to collect my battery, and on evenings like tonight, the full moon looks down and we have a little chat, and the stars are there and everything is OK. Sometimes a meteor flies by, or a dog barks.

Batteries may get their energy from the sun. The rest of us should hang out with the moon more.

Sunday, 17 January 2021

Journal 2021-01-17: Phew, some sun...

January always seems darker and more winter than December. I'm scraping my batteries for a few dregs this week, and clearing out a bunch of apps, keeping reading to a minimum, etc. Panels are full out today though.

And just for fun, here's a shot of the old guinea pig bedding composting the veg patch, and the fallen broccoli waiting to sprout. Does anyone know anything about purple sprouting broccoli?