Comments URL: https://news.ycombinator.com/item?id=47630032

Points: 4

# Comments: 0

https://fuelo.net/cheap/where?lang=bg&order=cheap&fuel_type=...

come here, the water is fine :)

  - panel 490Wp 2sq.m chinese = ~80E
  - battery 5kwh Li chinese = ~1200E , non-chinese ~2000E+
  - hybrid invertor+charger 4kw = ~800E chinese , ~2000E non-chinese
  - grid and regulations:
  -- day price: 0.15E/kWh, night: 0.09E/kWh
  -- no such thing as spot prices - summer or winter, peak sun or midnight, no difference
  -- can install anything AS LONG AS Nothing goes back into grid - and does not break other city/dwelling rules

The (proven) efficiency one can get is about 50-60% per Wp (if there is sun). So.. it depends how much panels one can install as that is the monie-source, all else is monie-sink :/

Rough Napkin math, electronics with german prices, ~5 hours per day sun on average: 10 panels (1000E) + 2 batteries (2000E) + inverter (1000E) ~~4000E yielding on average 440kwh/month i.e. pay itself in 5-7+ years, mostly for summer loads. While 5 panels + 1 battery + inverter ~2500E -> ~220kwh/month -> 6-8+ years

BUT only IF you can use that much electricity, otherwise it will take much longer to repay. And, batteries have to be replaced probably in 5-7 years, depending on depth-of-discharge.

In most places here everything is electrical. i have convectors, boilers, stove, etc. No A/C. (all other electrics is maybe under 2kw in total). i use like day/night 400/250kWh in summer, 1400/800 kWh in winter. Some people have noisy heat pumps but doubt that changes things much.

If it was a separate house - i would have done it long ago. But it's a block of flats.

So... small Balcony stuff makes no sense (a very expensive UPS?), big balcony stuff (like putting those 5 panels as balcony's shade.. a) probably won't be allowed, b) only a short balcony faces south-ish.

The roof of the building is empty - 250sq.m - and can hold about 75 panels - but dividing that into 15 (or 50+ in higher buildings).. is not pretty. a) Making one single farm and splitting the bill/output seems the only reasonable way but does not work without completely rewiring the building's grid input and measurings; not doable without bunch of permissions/certifications ; while b) making 15 separate 5-panels-packs - is not much economical, plus few kilometers of cables.. And c) If only few people want panels on roof, maybe some form of renting the roof space from others who don't want.. may work for a while but as any renting, may go crazy.

So.. been sitting and thinking.. and recently seems only sitting..

Best eaten as salad with oil and red-pepper, and of course, wrapping pork minceballs.

nazdrave

https://www.bgfermer.bg/Article/13055366

see this one: https://news.ycombinator.com/item?id=47494074

Here some story. Long time ago, i wrote a (software) accounting system. From 1st principles - nomenclatures, accounts, double-entry, transactions, balance (=current cached status), operations+reports on top of these. 5 tables (+1 for access control later). Very flexible and re-configurable into whatever one imagines. But anyway.

We deployed it at several places. The biggest one - retail with 50+ salepoints across whole region - was the most troublesome.. and after a month+ back-and-forth it dawned that.. they did have very well-working paper system of accounts/documents/data/values flow which was highly optimized for humans and the reality it was in (papers, remote places, delays, etc). Humans forget, make mistakes, displace things etc ; paper rots in time; distances make things out-of-sync - yesterdays invoices from village X will come tomorrow - maybe - .. etc. So their document flow - and even people-roles - were aligned with that system. Duplicating some things and completely avoiding others.

The new software had no such notions. There was no such thing as forgetting, displacing, out-of-balance. And while temporal stuff was fine, the document flow - even if consisting of same dot-matrix-perfect documents - was different to what they have used to. So.. it took them - and us - 3 months to retrain the personnel to unlearn their old system and to start actually using the new one properly, and enjoying the ride instead of fighting it.

Back to the topic.. i guess the old system of software engineering, built last 50+ years, has to be rearranged now. Not everything, but.. quite. Some things probably may wait for tomorrow, as the paper notes, but some - like roles and what they mean, and the cognitive/understanding chasm - is for yesterday..

Edit: after reading the whole paper, i think there are some things that can be "loaned" from hardware-design (chips etc) flows and processes. i see this analogy - the hardware's target environment (actual physical world, e.g. silicon etc) is also non-deterministic.. just mostly. Things like Requirements engineering, design-for-test ; all the enveloping (heat, power etc) and whatever else may come handy (i am not hardware dev, only seen these from aside, e.g. from a Verilog compiler)

Sometimes translation may bring (speed) optimization, sometimes not (like python<->C) - some redundant loop in C will be faster than same loop in python, but removing it entirely would be even faster.. and no need for a translation just for that.

You probably think of "transformation" as general term, but that is much more primitive than "translation".

Luckily it was wooden.

Of course if there are semantically correct ways of translation, optimization might be easier than without it.. For the defined semantics. But can still be hard on (or including) all other not-well-defined fronts.

Each decade after that, less and less of the specification is being ever written, and it is/was left to the programmer to finish it as they seem fit, and more and more programmers became (business-) domain-experts. Just see job ads for last (20?+) years - half is software-stuff, half is domain-knowledge required.

so.. do you think there's some reset happening/pending? So there is more specification being written? Or is it faster prototype-and-throw-away loop, and at the end the spec is "make it like this but prdocution grade" - instead of (again) actual proper specification with all the whys/whats/hows in it ?

> lot of people don't grok what feedback loops are

or they grok it very well, esp. the scary part..

Very few people want/enjoy negative feedback. On ANY level, bottom to top, the higher, the less probable to like/take it, esp. from underlings. Because that needs understanding of common goal at very different level, and incentives aren't aligned that way. Maybe in tiny companies / teams-left-on-their-own , corrective feedback works. for a while. But scaling it?

> We left out the active ingredient.

yea, thrown out the baby with the dirty water. In most cases last decade, i am only seeing rituals without essence, "monkey-policy" style. But i have not seen much dedication either, people want to get-on-with-their lifes, and doing work is just a vehicle

  "... This means the speed of the project is proportional to the speed at which information moves between people's heads. Every obstacle to detecting and moving information between heads slows the project. Understanding and attending to this issue is essential to playing the game effectively. ..."

Even then , coding is not mentioned..

What do you think of it?

* product part - functionality, overlaps with BA / business-analyst

* project part - people AND resources, follow timing/deadlines

* program management - not-sure what that exactly means and how big a company has these but it's different from above, higher level

say, in a 3-5 people company, the all-tech-lead usually apart of tech-stuff also does product stuff, and sometimes also project stuff - and only when that gets too much, a dedicated person is hired, most times also taking general QA hat (as being closest to product-input).

so.. if a team in much bigger company works like a tiny company, i guess any INBOX-managers and similar-reminder-proxies will be automated. While politics / human-relations , and understanding product will not. Or.. should not. But it may not be you doing them, esp. product part.

btw beware, current job market is very tough. Too many people for too few positions, companies either do not hire (waiting for something??) or are extremely picky when do.

nudge/"help" people to join the party?

trying to ride something around the windows-bullshitization , recent memory-prices etc..

https://ec.europa.eu/eurostat/statistics-explained/images/th...

https://ec.europa.eu/eurostat/statistics-explained/index.php...

there are 2-2.5x times differences between highest and lowest, of 25-30 countries

And here is some current/future (??) prices/increases, which i have no idea where they come from:

https://euenergy.live/

But what happens with the new things? Has the era of software-making (or creating things at large) finished, and from now on everything will be re-(gurgitated|implemented|polished) old stuff?

Or all goes back to proprietary everything.. Babylon-tower style, noone talks to noone?

edit: another view - is open-source from now on only for resume-building? "see-what-i've-built" style

one suggestion.. all these page-content-rewrites might be fine for a magazine, but here the user is searching, probably comparing, probably hundreds of items. Mostly because of inadequate/impossible filtering, combined with quite tough market - the net has to be cast wider and wider. So, just give plain pages, with choosable page-size. SPA not exactly needed.

btw Remote-ness is highly volatile factor, cannot be booleanly relied.

example search: i am in Bulgaria, so anything there + anything ~~remote in EU + anything ~~remote in that GMT+2 timezone +/- 3h. Exclude anything from (list of shitty agencies). Now Read all those and check

- see if they are in my city or are enoughly remote (can be certain-country/ies-remote, or even certain city/ies-remote =~~hybrid), or pretending to be remote..

- see if they are written in or require a human language i do not speak

- and only then maybe check the actual role :/

in 3 months i have read like 5-25 of these per day, picked from ~10-100.. from 5 sites, eventually - if there were any.

i Agree that linkedin is full of shit, although they are the only ones that do have an exclusion operator "-something", and have somewhat working boolean filtering (X OR Y) AND (Z OR T).. eh, within their sea of shit :/

good to have some sane alternative, thanks