OPEN HARDWARE OBSERVATORY

Search Engine and Assessment Platform for sustainable Open Hardware

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Printout selection

Options

Parameters [+]

limit:

The maximum number of results to return

offset:

The offset of the first result

link:

Show values as links

headers:

Display the headers/property names

mainlabel:

The label to give to the main page name

intro:

The text to display before the query results, if there are any

outro:

The text to display after the query results, if there are any

searchlabel:

Text for continuing the search

default:

The text to display if there are no query results

import-annotation:

Additional annotated data are to be copied during the parsing of a subject

propsep:

The separator between the properties of a result entry

valuesep:

The separator between the values for a property of a result

template:

The name of a template with which to display the printouts

named args:

Name the arguments passed to the template

userparam:

A value passed into each template call, if a template is used

class:

An additional CSS class to set for the list

introtemplate:

The name of a template to display before the query results, if there are any

outrotemplate:

The name of a template to display after the query results, if there are any

sep:

The separator between results

Sort options

Add sorting condition

ResultCodeDebugExtra

To embed this query inline into a wiki page use the code below.

{{#ask: [[Category:Photovoltaics]]
 |?Desc
 |?Projectimage=Image
 |?Licence
 |?ContainsPdfDrawings
 |?Firstin
 |?CadFilesAreInEditableFormat
 |format=template
 |limit=50
 |offset=40
 |link=none
 |sort=
 |order=asc
 |mainlabel=
 |template=ProjektResults
 |class=search_items_results_page pagination-container
}}

Results 41 – 90 previous 50 20 50 100 250 500 next 50

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Query log

{
    "query_string": "[[Category:Photovoltaics]]",
    "query_source": "SMWSQLStore",
    "query_time": "0.0206",
    "from_cache": false
}

Debug output SQLStore

ASK Query

[[Category:Photovoltaics]]

SQL Query

SELECT DISTINCT
t0.smw_id AS id,
  t0.smw_title AS t,
  t0.smw_namespace AS ns,
  t0.smw_iw AS iw,
  t0.smw_subobject AS so,
  t0.smw_sortkey AS sortkey, t0.smw_sort
FROM
`smw_object_ids` AS t0
INNER JOIN
(`smw_fpt_inst` AS t1
INNER JOIN
`t2` AS t2 ON t1.o_id=t2.id) ON t0.smw_id=t1.s_id
WHERE
t0.smw_iw!=':smw'
  AND t0.smw_iw!=':smw-delete'
  AND t0.smw_iw!=':smw-redi'
ORDER BY
t0.smw_sort ASC
LIMIT
55
OFFSET
40

SQL Explain

ID	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
1	SIMPLE	t2	ALL	PRIMARY				8		Using temporary; Using filesort
1	SIMPLE	t1	ref	s_id, o_id, s_id_2, o_id_2	o_id_2	5	oho_wiki_en.t2.id	13		Using index
1	SIMPLE	t0	eq_ref	PRIMARY, smw_id, smw_iw, smw_iw_2	PRIMARY	4	oho_wiki_en.t1.s_id	1		Using where

Auxilliary Tables

Temporary table t2
Recursively computed hierarchy for element(s) (577).
SELECT s_id FROM `smw_fpt_subc` WHERE o_id=577 LIMIT 1

Query Metrics

Query-Size:1
Query-Depth:0

Errors and Warnings

None

Home 100w portable mini solar inverter ( Home 100w portable mini solar inverter )

English In this video I show you how to assemble a 100w inverter ideal for camping and that is very simple to build and that ... Project development: Redesign t...

   Contains PDF Blueprints: No

   Contains CAD Files: No

License: unknown

Home Photovoltaic System

1000 whats solar system. Project development: Redesign together with project owner (A2, P1)

   Contains PDF Blueprints: No

   Contains CAD Files: No

License: unknown

Home solar panel

https://www.ebay.com/itm/100-pcs-solar-cells-6x6-solar-cells-mono/192859655188?hash=item2ce754cc14:g: ...

   Contains PDF Blueprints: No

   Contains CAD Files: No

License: unknown

Homemade 12V DC Box Fan - Full Size - 100% solar (or battery pwrd) - 100w panel/motor - Awesome

Large 12V DC Box

   Contains PDF Blueprints: No

   Contains CAD Files: No

License: unknown

Homemade Photovoltaic Cell

Explanation to make a cell at home.

   Contains PDF Blueprints: No

   Contains CAD Files: No

License: unknown

Homemade Solar Panel Tracking System

Diy solar tracker step 1. Homemade solar panel tracking system. These have to be printed in full scale. A servo connection a microcontroller two ldr s

   Contains PDF Blueprints: No

   Contains CAD Files: No

License: unknown

Homemade pelez boiler and battery recharge with solar panel

   Contains PDF Blueprints: No

   Contains CAD Files: No

License: unknown

Homemade photovoltaic cell

Renewable energy and energy efficiency Luis Puentes, David Olivares.

   Contains PDF Blueprints: No

   Contains CAD Files: No

License: unknown

Homemade solar charger with battery - Berg-nutzfahrzeuge.de

Build a solar battery charger for Arduino solar charger with homemade battery. Homemade Solar Power Bank with Cell Phone Battery - Tutorial 2020

   Contains PDF Blueprints: No

   Contains CAD Files: No

License: unknown

How to Build a Homemade Solar Panel from Scratch in 25min Video

? Polycrystalline Project development: Redesign together with project owner (A2, P1)

   Contains PDF Blueprints: No

   Contains CAD Files: No

License: unknown

How to Build a Solar Panel Roof Rack

I have been in the... Project development: Redesign together with project owner (A2, P1)

   Contains PDF Blueprints: No

   Contains CAD Files: No

License: unknown

How to Build the Ultimate DIY Solar Panel Ground Mount

How to build the ultimate

   Contains PDF Blueprints: No

   Contains CAD Files: No

License: unknown

How to Heat Water with a Solar Panel - Small Batch PV Hot Water Heating - Easy DIY

   Contains PDF Blueprints: No

   Contains CAD Files: No

License: unknown

How to Make a Homemade Solar Panel with Recycled Materials

How to Make a Homemade Solar Panel (Part 2) https://www.youtube.com/watch?v=HPq6rYuP5v4 How to Make a Solar Inverter ...

   Contains PDF Blueprints: No

   Contains CAD Files: No

License: unknown

How to build a Tesla style Powerwall Solar Battery

In today's article we will show you how to build your own Testa style solar powerwall using 18650 batteries.

   Contains PDF Blueprints: No

   Contains CAD Files: No

License: unknown

How to build a homemade battery with 18650 batteries and solar recharge

18650 batteries have a very good ratio of volume, weight and capacity and are widely used in all types of devices. With them you can also build a battery with m...

   Contains PDF Blueprints: No

   Contains CAD Files: No

License: unknown

How to build a photovoltaic system yourself.

if you own a house, then inevitably comes the idea one day to buy a photovoltaic system.

   Contains PDF Blueprints: No

   Contains CAD Files: No

License: unknown

How to build a solar panel - with an old cell phone battery DIY solar panel

Hi Dear. Welcome to my "Crazy Think" channel. This channel includes of guiding videos. They are: * Life Hacks * Home Made ...

   Contains PDF Blueprints: No

   Contains CAD Files: No

License: unknown

How to build a solar tracker. do it yourself solar panel sun tracker.

The design, build and installation of a Solar panel track-able roof mount. Homemade solar panel brackets. Project development: Redesign together with project ow...

   Contains PDF Blueprints: No

   Contains CAD Files: No

License: unknown

How to make a homemade solar panel with recycled materials (Part 2)

   Contains PDF Blueprints: No

   Contains CAD Files: No

License: unknown

How to make a homemade solar panel with recycled materials (Part 2).

How to make a Solar Panel

   Contains PDF Blueprints: No

   Contains CAD Files: No

License: unknown

How to make solar home for solar panels installation 12v DC full home dc connection...

YouTube:https://www.youtube.com/channel/UClNU-S4sNz_ILHPeu6aJsDg?disable_polymer=true ...

   Contains PDF Blueprints: No

   Contains CAD Files: No

License: unknown

Inexpensive Solar Power Off Grid Cabin or homestead DIY system SOLAR OFFGRID homestead

Inexpensive Solar information could be used in in-house engineering projects Project development: In-house engineering without blueprints (C2, P2)

   Contains PDF Blueprints: No

   Contains CAD Files: No

License: unknown

Laboratory-Scale Single Axis Solar Tracking System: Design and ...

This paper presents the design and development of a laboratory-scale single axis solar tracking system. The chronological method was implemented into ... Projec...

   Contains PDF Blueprints: No

   Contains CAD Files: No

License: unknown

LibreSolar BMS - Batterie Management System - Open Source Ecology - Germany

Cookies helfen uns bei der Bereitstellung von Open Source Ecology - Germany. Durch die Nutzung von Open Source Ecology - Germany erklärst du dich damit einverst...

   Contains PDF Blueprints: No

   Contains CAD Files: No

License: unknown

MAKE SOLAR PHOTOVOLTAIC PV PANELS SOLAR CELLS HOMEMADE DO IT YOURSELF SOLAR PANEL

Check http://www.SolarEnergyGuide.net for details

   Contains PDF Blueprints: No

   Contains CAD Files: No

License: unknown

Make your own Photovoltaic Off-Grid System

Support me for more videos: https://www.patreon.com/GreatScott Previous video: https://youtu.be/sU-hSFFwSmo Facebook: ...

   Contains PDF Blueprints: No

   Contains CAD Files: No

License: unknown

Off Grid Solar Panel System (DIY PVC Stand)

I am starting to build an off-grid

   Contains PDF Blueprints: No

   Contains CAD Files: No

License: unknown

Photovoltaic Panel reusable

Crystalline silicon solar panel that can be built, maintained and refurbished locally, leading to a lower levelized cost of electricity and higher sustainabilit...

   Contains PDF Blueprints: No

   Contains CAD Files: No

License: COHL

SOLAR HOLDING FLEXIBLE Summer Winter Solar Panels flexible mounting DIY self-build tracking

My videos are from 100% homemade electricity I saw rusty hinges, sometimes you get the ideas when you ...

   Contains PDF Blueprints: No

   Contains CAD Files: No

License: unknown

STEPS FOR BUILDING A BATTERY BANK IN SOLAR PHOTOVOLTAIC GENERATION

information could be used in in-house engineering projects Project development: In-house engineering based on blueprints (C1, P2)

   Contains PDF Blueprints: No

   Contains CAD Files: No

License: unknown

Self-made Solar Panel Tracking / Self Made Solar Tracker

Jau, The Buchheimer has again, tinkered ,,. This time I was about to install a simple and manual ...

   Contains PDF Blueprints: No

   Contains CAD Files: No

License: unknown

Small homemade solar thermal panel

In this video you can see how I made a rotary oven.

   Contains PDF Blueprints: No

   Contains CAD Files: No

License: unknown

Solar Life: Episode 6 - 12 solar panel pole mount design and build.

In this episode of

   Contains PDF Blueprints: No

   Contains CAD Files: No

License: unknown

Solar Module Construction 2 - Open Source Ecology

This shows how to solder

   Contains PDF Blueprints: No

   Contains CAD Files: No

License: unknown

Solar Module Construction 3 - Open Source Ecology

This shows how to solder

   Contains PDF Blueprints: No

   Contains CAD Files: No

License: unknown

Solar Panel Construction 1 - Open Source Ecology

This shows how to solder

   Contains PDF Blueprints: No

   Contains CAD Files: No

License: unknown

Solar Panel Mounting Made Easy: DIY Solar Panel Mount

Subscribe above to make sure you see our latest videos all about DIY offgrid

   Contains PDF Blueprints: No

   Contains CAD Files: No

License: unknown

Solar Panels For The Beginner How To Pt 1 DIY Simple Instructions Missouri Wind and Solar 2

The Best video in Layman's terms Everything you need to know about using solar panels to create free electricity for your home.

   Contains PDF Blueprints: No

   Contains CAD Files: No

License: unknown

Solar Powerbank DIY Outdoor Battery / Radio / Light

   Contains PDF Blueprints: No

   Contains CAD Files: No

License: unknown

Solar battery charger (LiPo/Li-Ion) DIY or purchase.

Step-by-step construction of a solar battery charger (LiPo/Li-Ion) Project development: Redesign together with project owner (A2, P1)

   Contains PDF Blueprints: No

   Contains CAD Files: No

License: unknown

Solar cell align to the sun - do it yourself bracket for USB solar panel

If we align the solar cell with the sun, we can harvest more energy from the sun. In this video I show the do it yourself ... plastic parts could be used in in-...

   Contains PDF Blueprints: No

   Contains CAD Files: No

License: unknown

Solar island plant build yourself 12 V - Update

Transcription: Solar island plant build yourself. Now I have rebuilt my solar island system. So who owns a solar island system ...

   Contains PDF Blueprints: No

   Contains CAD Files: No

License: unknown

Solar island system for everyone to build low priced - high voltage

Transcription: In principle, a solar island system is possible for everyone. http://handwerkertipps.net/solarinselanlage Today would like ...

   Contains PDF Blueprints: No

   Contains CAD Files: No

License: unknown

Solar module bracket build yourself - Dynamic ...

Here I show how you can build a solar module stand itself cost-effective. Today the new solar module bracket is built and built with a solar module. The set con...

   Contains PDF Blueprints: No

   Contains CAD Files: No

License: unknown

Solar module brand self-made - FUTUREMAG - ARTE

www.futuremag.de The idea of building your own solar module is not that crazy. On the Internet there are instructions and ...

   Contains PDF Blueprints: No

   Contains CAD Files: No

License: unknown

Solar module build yourself Part1 Solar cell cut PHOTOVOLTAIC plant

   Contains PDF Blueprints: No

   Contains CAD Files: No

License: unknown

Solar module stand build yourself for 20-30EUR

Here I show how you can build a solar module stand itself cost-effective.

   Contains PDF Blueprints: No

   Contains CAD Files: No

License: unknown

Solar modules mounted - Wohnkabine in self-construction

Today I have the two 100W solar modules (monocrystalline) mounted. These are bolted to 25x25mm Aluvierkantrohre. Both modules are electrically connected in para...

   Contains PDF Blueprints: No

   Contains CAD Files: No

License: unknown

Solar thermal air heating panel build

This video is about building a

   Contains PDF Blueprints: No

   Contains CAD Files: No

License: unknown

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OPEN HARDWARE OBSERVATORY 2020

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