--- title: Wind, sun and other clean energy — a lesson of Mova's school · trees and pragmatics description: «Wind, sun and other clean energy», a lesson of the technology course of Mova's primary school, sentence by sentence with dependency trees and pragmatics. It begins: Some energy never runs out. --- [Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/school/technology/33-wind-sun-and-other-clean-energy/) [home](https://md.mova.elamur.ai/free/en/) / [corpora](https://md.mova.elamur.ai/free/en/corpora/) / [school](https://md.mova.elamur.ai/free/en/corpora/school/) / [Technology](https://md.mova.elamur.ai/free/en/corpora/school/technology/) / Wind, sun and other clean energy # Wind, sun and other clean energy Lesson 33 of the technology course of Mova's primary school: 19 sentences, each with its syntax tree and pragmatics. The lessons are written for Mova, and their agreed trees are part of Mova corpus 0.4 (CC BY-SA 4.0). How Mova does on its tests: [the lesson at school](https://md.mova.elamur.ai/free/en/school-run/technology/33-wind-sun-and-other-clean-energy/). - [0](https://md.mova.elamur.ai/free/en/corpora/school/technology/33-wind-sun-and-other-clean-energy/0/) — Some energy never runs out. - [1](https://md.mova.elamur.ai/free/en/corpora/school/technology/33-wind-sun-and-other-clean-energy/1/) — The wind keeps blowing, the Sun keeps shining, the Moon keeps pulling the tides and the deep Earth stays hot; energy from sources like these is called renewable, and using it makes far less carbon dioxide than burning coal or gas. - [2](https://md.mova.elamur.ai/free/en/corpora/school/technology/33-wind-sun-and-other-clean-energy/2/) — A wind turbine is a giant windmill. - [3](https://md.mova.elamur.ai/free/en/corpora/school/technology/33-wind-sun-and-other-clean-energy/3/) — The wind pushes its long blades round, the blades turn a shaft, and a generator in the box at the top makes electricity, just like in a power station but with no fuel at all. - [4](https://md.mova.elamur.ai/free/en/corpora/school/technology/33-wind-sun-and-other-clean-energy/4/) — A solar panel does something even stranger: nothing moves. - [5](https://md.mova.elamur.ai/free/en/corpora/school/technology/33-wind-sun-and-other-clean-energy/5/) — Light hits thin slices of silicon and knocks tiny electrons loose, and they flow away as electricity, a bit like the little panel on a solar calculator that keeps working as long as there is light. - [7](https://md.mova.elamur.ai/free/en/corpora/school/technology/33-wind-sun-and-other-clean-energy/7/) — On a calm night there is neither, so the grid still needs other sources and stores of energy, and that is why engineers mix many kinds together. - [8](https://md.mova.elamur.ai/free/en/corpora/school/technology/33-wind-sun-and-other-clean-energy/8/) — A wind turbine's blades are turned by the wind and spin a shaft and a generator in the box at the top; the biggest offshore turbines have blades more than 100 metres long each. - [9](https://md.mova.elamur.ai/free/en/corpora/school/technology/33-wind-sun-and-other-clean-energy/9/) — Offshore wind farms are rows of turbines standing in the sea, where the wind is stronger and steadier, and cables carry the electricity to land; the UK has some of the largest in the world. - [10](https://md.mova.elamur.ai/free/en/corpora/school/technology/33-wind-sun-and-other-clean-energy/10/) — In a solar panel, light hits special silicon cells and knocks tiny electrons free, which flow as electricity; panels still work on cloudy days and in winter, just less. - [11](https://md.mova.elamur.ai/free/en/corpora/school/technology/33-wind-sun-and-other-clean-energy/11/) — Never climb onto a roof to touch solar panels; installers are trained to work up there safely. - [12](https://md.mova.elamur.ai/free/en/corpora/school/technology/33-wind-sun-and-other-clean-energy/12/) — A solar farm is a field of panels, sometimes with sheep grazing between them, and some panels turn slowly to follow the Sun across the sky. - [13](https://md.mova.elamur.ai/free/en/corpora/school/technology/33-wind-sun-and-other-clean-energy/13/) — A solar garden light charges a small battery from a little panel during the day, and a light sensor switches it on when it gets dark. - [14](https://md.mova.elamur.ai/free/en/corpora/school/technology/33-wind-sun-and-other-clean-energy/14/) — A tidal power station uses the tides flowing in and out to spin underwater turbines, and tides are caused mainly by the Moon pulling on the sea. - [15](https://md.mova.elamur.ai/free/en/corpora/school/technology/33-wind-sun-and-other-clean-energy/15/) — Geothermal energy uses heat from deep underground to warm water, make steam or heat homes; Iceland, a land of volcanoes with hot rock and hot water close under the ground, gets most of its heating this way. - [16](https://md.mova.elamur.ai/free/en/corpora/school/technology/33-wind-sun-and-other-clean-energy/16/) — In a biogas plant, bacteria break down food waste and manure and make a gas that can be burned for electricity or heat, so a food waste bin can end up making electricity. - [17](https://md.mova.elamur.ai/free/en/corpora/school/technology/33-wind-sun-and-other-clean-energy/17/) — Solar water heating panels are black because black things soak up sunlight and get hotter than white things, and the water in their pipes is warmed. - [18](https://md.mova.elamur.ai/free/en/corpora/school/technology/33-wind-sun-and-other-clean-energy/18/) — Renewable energy comes from sources that do not run out, like wind, sun, water and underground heat; on some windy days wind gives more than half of the UK's electricity. - [19](https://md.mova.elamur.ai/free/en/corpora/school/technology/33-wind-sun-and-other-clean-energy/19/) — We cannot use only wind and sun yet, because they come and go with the weather and the time of day, so the grid also needs storage and other sources. - ← previous: [Power stations and the grid](https://md.mova.elamur.ai/free/en/corpora/school/technology/32-power-stations-and-the-grid/) - next →: [Batteries](https://md.mova.elamur.ai/free/en/corpora/school/technology/34-batteries/) - ↑ back to [Technology](https://md.mova.elamur.ai/free/en/corpora/school/technology/)