{"id":6224,"date":"2020-12-10T21:40:45","date_gmt":"2020-12-10T20:40:45","guid":{"rendered":"https:\/\/onload.reinhausen.com\/de\/?p=6224"},"modified":"2020-12-10T21:40:45","modified_gmt":"2020-12-10T20:40:45","slug":"saving-for-the-future","status":"publish","type":"post","link":"https:\/\/onload.reinhausen.com\/en\/12-2020\/saving-for-the-future\/","title":{"rendered":"Saving for the future"},"content":{"rendered":"
\n

E<\/span>nvi\u00adron\u00admen\u00adtal pro\u00adtec\u00adtion and the reduc\u00adtion of green\u00adhouse gas\u00ades, par\u00adtic\u00adu\u00adlar\u00adly CO 2 , require far-reach\u00ading changes in ener\u00adgy pro\u00adduc\u00adtion around the globe. The expan\u00adsion of renew\u00adable ener\u00adgies, espe\u00adcial\u00adly solar and wind ener\u00adgy, play a key role in the ener\u00adgy rev\u00ado\u00adlu\u00adtion, because the sup\u00adply of these environ\u00admentally friend\u00adly ener\u00adgy sources vast\u00adly exceeds the cur\u00adrent glob\u00adal need for pri\u00adma\u00adry ener\u00adgy, cur\u00adrent\u00adly at about 170,000 ter\u00adawatt hours (see ONLOAD 07).<\/a><\/p>\n

Accord\u00ading to data acquired by the IEA (Inter\u00adna\u00adtion\u00adal Ener\u00adgy Agency), emis\u00adsions-free pow\u00ader already accounts for approx\u00adi\u00admate\u00adly 37% of the pow\u00ader flow\u00ading through grids around the world. How\u00adev\u00ader, elec\u00adtric ener\u00adgy only makes up a fifth of the total glob\u00adal ener\u00adgy con\u00adsump\u00adtion. There\u00adfore, how renew\u00adable sources can sub\u00adsti\u00adtute con\u00adven\u00adtion\u00adal ones in the trans\u00adport and heat\u00ading sec\u00adtors is also cru\u00adcial for the ener\u00adgy rev\u00ado\u00adlu\u00adtion.<\/p>\n

There\u00adfore, how renew\u00adable sources can sub\u00adsti\u00adtute con\u00adven\u00adtion\u00adal ones in the trans\u00adport and heat\u00ading sec\u00adtors is also cru\u00adcial for the ener\u00adgy rev\u00ado\u00adlu\u00adtion.<\/p><\/blockquote>\n

In order to reach our cli\u00admate goals, a whole array of chal\u00adlenges must be over\u00adcome. In the words of Markus Riepl, who devel\u00adops solu\u00adtions for the grids of the future at Rein\u00adhausen: \u201cMany ques\u00adtions are about how the grids of the future can trans\u00adport this mas\u00adsive amount of ener\u00adgy, and how the volatile pro\u00adduc\u00adtion of solar and wind pow\u00ader can be aligned with cur\u00adrent needs in the right place at the right time. These ques\u00adtions have both glob\u00adal and region\u00adal dimen\u00adsions.\u201d
\n
\nIn the future, many indus\u00adtri\u00adal\u00adized nations, such as Ger\u00admany, will have to import \u201cgreen ener\u00adgy\u201d in the form of \u201cgreen hydro\u00adgen\u201d pro\u00adduced in windy and sun\u00adny regions. At the same time, grid capac\u00adi\u00adties are already reach\u00ading their lim\u00adits and can\u00adnot always trans\u00adport envi\u00adron\u00admen\u00adtal\u00adly friend\u00adly pow\u00ader from the pro\u00adduc\u00ader to the con\u00adsumer as need\u00aded. One option for off\u00adset\u00adting these fluc\u00adtu\u00ada\u00adtions are ener\u00adgy accu\u00admu\u00adla\u00adtors. Below, this arti\u00adcle shows how grid prob\u00adlems asso\u00adci\u00adat\u00aded with renew\u00adable ener\u00adgies can be solved with stor\u00adage systems\u2014from high-volt\u00adage and extra-high-volt\u00adage to medi\u00adum-volt\u00adage and low-volt\u00adage lev\u00adels.<\/p>\n

The challenge of sector coupling<\/h3>\n

Even at the extra-high-volt\u00adage lev\u00adel, bat\u00adtery stor\u00adage can buffer trans\u00admis\u00adsion bot\u00adtle\u00adnecks in grids. For exam\u00adple, in Ger\u00admany, elec\u00adtric\u00adi\u00adty has to get from off-shore wind parks in the windy north to high-con\u00adsump\u00adtion areas in the south. While oper\u00ada\u00adtors are con\u00adstant\u00adly expand\u00ading trans\u00admis\u00adsion grids, this alone is not enough. The trans\u00admis\u00adsion pow\u00ader must also be opti\u00admized using what are called \u201cgrid boost\u00aders\u201d. These are gigan\u00adtic bat\u00adtery sys\u00adtems in the pow\u00ader range of sev\u00ader\u00adal hun\u00addred megawatts.<\/p>\n

For con\u00adtext: Trans\u00adport\u00ading large amounts of elec\u00adtric\u00adi\u00adty from the north to the south over lines results in over\u00adload\u00ading indi\u00advid\u00adual line sec\u00adtions again and again, which makes expen\u00adsive redis\u00adpatch mea\u00adsures nec\u00ades\u00adsary. This means that pro\u00adduc\u00aders upstream of a bot\u00adtle\u00adneck must reduce their pro\u00adduc\u00adtion and those down\u00adstream of the bot\u00adtle\u00adneck must increase their pro\u00adduc\u00adtion by the same amount. The costs for these mea\u00adsures add up to more than 100 mil\u00adlion euros annu\u00adal\u00adly in Ger\u00admany alone.<\/p>\n

Pow\u00ader gen\u00ader\u00ada\u00adtion and con\u00adsump\u00adtion: When bal\u00adanc\u00ading the gaps or sur\u00adplus\u00ades between gen\u00ader\u00ada\u00adtion and con\u00adsump\u00adtion, redis\u00adpatch costs arise. Grid boost\u00aders help to min\u00adi\u00admize these.<\/figcaption><\/figure>\n

Grid boost\u00aders help bal\u00adance out these gaps by sav\u00ading the excess quan\u00adti\u00adties that occur upstream of bot\u00adtle\u00adnecks and can\u00adnot be trans\u00adport\u00aded, nd then pro\u00advid\u00ading the pow\u00ader down\u00adstream of the bot\u00adtle-necks. Since this all hap\u00adpens with\u00adin an extreme\u00adly fast response time, safe\u00adty reserves in the grids intend\u00aded for these kinds of mal\u00adfunc\u00adtions can be used for elec\u00adtric\u00adi\u00adty trans\u00adport.<\/p>\n

Grid boosters for transmission grids<\/h3>\n

Due to the depen\u00addence on wind and weath\u00ader, there is usu\u00adal\u00adly either too much or too lit\u00adtle elec\u00adtri\u00adcal ener\u00adgy avail\u00adable. Grid oper\u00ada\u00adtors want to off\u00adset this by cou\u00adpling or inter\u00adlock\u00ading the ener\u00adgy sec\u00adtors of elec\u00adtric\u00adi\u00adty, heat and transport\u2014using the ener\u00adgy source of gas. Excess renew\u00adable ener\u00adgy is decou\u00adpled to the trans\u00adport and heat\u00ading sec\u00adtors using pow\u00ader- to-gas or pow\u00ader-to-heat sys\u00adtems.<\/p>\n

The gas grid has enor\u00admous stor\u00adage capac\u00adi\u00adty for this. For exam\u00adple, the hydro\u00adgen pro\u00adduced with renew\u00adable ener\u00adgy in fuel cells for cars or through con\u00adven\u00adtion\u00adal uti\u00adliza\u00adtion in nat\u00adur\u00adal gas con\u00adsumers can reduce dam\u00adag\u00ading green\u00adhouse gas emis\u00adsions.<\/p>\n

Pro\u00adfes\u00adsor Veroni\u00adka Grimm of the Uni\u00adver\u00adsi\u00adty of Erlan\u00adgen-Nurem\u00adberg is one of the lead\u00ading forces behind sec\u00adtor cou\u00adpling in Ger\u00admany. In an inter\u00adview with the online plat\u00adform sech\u00adsnull. de, she explains that green hydro\u00adgen in par\u00adtic\u00adu\u00adlar will play a cru\u00adcial role when it comes to the decar\u00adboniza\u00adtion of the trans\u00adport and heat\u00ading sec\u00adtors.<\/p>\n

The prin\u00adci\u00adple of pow\u00ader-to-gas tech\u00adnol\u00ado\u00adgy<\/figcaption><\/figure>\n

For this renew\u00adable ener\u00adgy spe\u00adcial\u00adist, it is also clear that there can be no ener\u00adgy rev\u00ado\u00adlu\u00adtion with\u00adout inter\u00adna\u00adtion\u00adal con\u00adnect\u00aded\u00adness. \u201cAs an indus\u00adtri\u00adal\u00adized nation, we will still not be self-suf\u00adfi\u00adcient in a 100 per\u00adcent renew\u00adable world. We will import hydro\u00adgen and syn\u00adthet\u00adic ener\u00adgy sources that were pro\u00adduced in pre\u00adferred regions all around the world,\u201d says Prof. Grimm.<\/p>\n

Buffering with community batteries<\/h3>\n

Today, sta\u00adtion\u00adary accu\u00admu\u00adla\u00adtors, also known as com\u00admu\u00adni\u00adty bat\u00adter\u00adies, usu\u00adal\u00adly buffer the fluc\u00adtu\u00adat\u00ading amounts pro\u00adduced by renew\u00adable ener\u00adgy sources on the medi\u00adum-volt\u00adage lev\u00adel, thus con\u00adtribut\u00ading sig\u00adnif\u00adi\u00adcant\u00adly to the ener\u00adgy rev\u00ado\u00adlu\u00adtion. They offer total\u00adly new oppor\u00adtu\u00adni\u00adties for ener\u00adgy and load man\u00adage\u00adment in indus\u00adtri\u00adal oper\u00ada\u00adtions and dis\u00adtri\u00adb\u00adu\u00adtion grid sec\u00adtions.<\/p>\n

Wind or solar parks can be cou\u00adpled to pro\u00adduc\u00adtion units using these ener\u00adgy accu\u00admu\u00adla\u00adtors, allow\u00ading them to bring ener\u00adgy into the grids con\u00adstant\u00adly and pre\u00addictably. They help sta\u00adbi\u00adlize micro\u00adgrids or poor\u00adly devel\u00adoped grids by com\u00adpen\u00adsat\u00ading for fluc\u00adtu\u00adat\u00ading load and infeed amounts. From an eco\u00adnom\u00adic point of view, com\u00admu\u00adni\u00adty bat\u00adter\u00adies make sense at many node points on the grids, says Rein\u00adhausen expert Markus Riepl.<\/p>\n

\u201cGrid oper\u00ada\u00adtors avoid invest\u00adment in grid expan\u00adsion, and sup\u00adpli\u00aders of wind and solar ener\u00adgy can use the mar\u00adket imbal\u00adances to sell their elec\u00adtric\u00adi\u00adty when it brings in the most prof\u00adit. Pow\u00ader sta\u00adtions can cre\u00adate reserves and com\u00adpen\u00adsate for demand peaks in the grid.\u201d<\/p><\/blockquote>\n

The bat\u00adtery invert\u00ader com\u00adbines three func\u00adtions in a sin\u00adgle unit: stor\u00adage, reac\u00adtive pow\u00ader com\u00adpen\u00adsa\u00adtion and active fil\u00adter\u00ading. Due to this sys\u00adtem ser\u00advice capa\u00adbil\u00adi\u00adty, these invert\u00aders are clas\u00adsi\u00adfied as grid com\u00adpo\u00adnents by the reg\u00adu\u00adla\u00adto\u00adry author\u00adi\u00adty. This clas\u00adsi\u00adfi\u00adca\u00adtion offers advan\u00adtages to the oper\u00ada\u00adtor in terms of invest\u00adment costs and stor\u00adage man\u00adage\u00adment. Remote regions with a weak grid con\u00adnec\u00adtion can also achieve a more sta\u00adble pow\u00ader sup\u00adply using stor\u00adage tech\u00adnol\u00ado\u00adgy.<\/p>\n

Ener\u00adgy stor\u00adage sys\u00adtems (ESS) can store ener\u00adgy pro\u00adduced by var\u00adi\u00adous pro\u00adduc\u00aders, like solar and wind sys\u00adtems or diesel gen\u00ader\u00ada\u00adtors, and out\u00adput it to the grid as need\u00aded. As a result, these sys\u00adtems guar\u00adan\u00adtee a smooth, con\u00adtin\u00adu\u00adous pow\u00ader sup\u00adply. This requires invert\u00ader solu\u00adtions, such as GRIDCON\u00ae PCS from Rein\u00adhausen, for exam\u00adple, which Autarsys installs in bat\u00adtery sys\u00adtems that are cur\u00adrent\u00adly being used in the pow\u00ader sup\u00adply of a remote area in the Philip\u00adpines (read more on this in online issue 05 atonload.reinhausen.com).<\/p>\n

Andreas Plenk of the Dutch stor age sys\u00adtem man\u00adu\u00adfac\u00adtur\u00ader Alfen sees even more ver\u00adsa\u00adtile appli\u00adca\u00adtions for bat\u00adtery sys\u00adtems. \u201cMore and more Euro\u00adpean cities are set\u00adting up green zones and want to ban diesel gen\u00ader\u00ada\u00adtors for envi\u00adron\u00admen\u00adtal rea\u00adsons. But mar\u00adkets, fes\u00adti\u00advals and large events still need to be sup\u00adplied with elec\u00adtric\u00adi\u00adty. We have a sim\u00adi\u00adlar sit\u00adu\u00ada\u00adtion at ports. Green zones are set up here in order to reduce the num\u00adber of diesel gen\u00ader\u00ada\u00adtors port oper\u00ada\u00adtors and ship\u00adping com\u00adpa\u00adnies need. In this way, new mar\u00adkets are cur\u00adrent\u00adly emerg\u00ading.\u201d<\/p>\n

Charging stations relieve distribution grids<\/h3>\n

The ener\u00adgy trans\u00adfor\u00adma\u00adtion can\u00adnot be done with\u00adout elec\u00adtric mobil\u00adi\u00adty, at least as an inter\u00adme\u00addi\u00adate step. Ana\u00adlysts expect that, by 2030, there will be more elec\u00adtric vehi\u00adcles on the road in most indus\u00adtri\u00adal\u00adized coun\u00adtries than those with com\u00adbus\u00adtion engines. In fact, Cal\u00adi\u00adfor\u00adnia would like to get rid of con\u00adven\u00adtion\u00adal vehi\u00adcles entire\u00adly by that point. For dis\u00adtri\u00adb\u00adu\u00adtion grids, in par\u00adtic\u00adu\u00adlar, this devel\u00adop\u00adment presents tremen\u00addous chal\u00adlenges which can only be mas\u00adtered with intel\u00adli\u00adgent charg\u00ading infra\u00adstruc\u00adture.<\/p>\n

For exam\u00adple, expen\u00adsive expan\u00adsion of line capac\u00adi\u00adties would be nec\u00ades\u00adsary in many cas\u00ades in order to charge mul\u00adti\u00adple vehi\u00adcles in a park\u00ading garage or pub\u00adlic park\u00ading spaces. The alter\u00adna\u00adtive is charg\u00ading sta\u00adtions that keep a bat\u00adtery ready and there\u00adfore accel\u00ader\u00adate the charg\u00ading process while simul\u00adta\u00adne\u00adous\u00adly reliev\u00ading the low-volt\u00adage grids. There is a glob\u00adal mar\u00adket here for which Rein\u00adhausen is pro\u00advid\u00ading solu\u00adtions.<\/p>\n

This con\u00adcept can also ben\u00ade\u00adfit from swarm intel\u00adli\u00adgence. The fluc\u00adtu\u00adat\u00ading, weath\u00ader-depen\u00addent ener\u00adgy pro\u00adduc\u00adtion from renew\u00adable ener\u00adgy sources can also bal\u00adance fluc\u00adtu\u00ada\u00adtions on the local grid lev\u00adel through smart bat\u00adtery solu\u00adtions. For this pur\u00adpose, vehi\u00adcles in their down\u00adtimes pro\u00advide their bat\u00adtery capac\u00adi\u00adty to the pow\u00ader grid in the event of bot\u00adtle\u00adnecks. In turn, in cas\u00ades where the pow\u00ader grid would have more than enough ener\u00adgy to sup\u00adply to the vehi\u00adcles, sup\u00adply and pro\u00adduc\u00adtion peaks could be smoothed over. Bat\u00adtery stor\u00adage can there\u00adfore help mas\u00adter the chal\u00adlenge of the ener\u00adgy rev\u00ado\u00adlu\u00adtion on all grid levels\u2014from high-volt\u00adage grids to local grids. Rein\u00adhausen wants to do its part here.<\/p>\n

\n

YOUR CONTACT<\/h2>\n

Do you have ques\u00adtions about stor\u00adage tech\u00adnolo\u00adgies?<\/strong>
\nMarkus Riepl is avail\u00adable for your ques\u00adtions:
\nMarkus.Riepl@reinhausen.com<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

Renew\u00adable ener\u00adgies are volatile. Decar\u00adboniza\u00adtion will not be pos\u00adsi\u00adble with\u00adout stor\u00adage tech\u00adnolo\u00adgies across all grid lev\u00adels.<\/p>\n","protected":false},"author":27,"featured_media":6305,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"wp_typography_post_enhancements_disabled":false,"footnotes":""},"categories":[9],"tags":[],"class_list":["post-6224","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-12-2020"],"acf":[],"_links":{"self":[{"href":"https:\/\/onload.reinhausen.com\/en\/wp-json\/wp\/v2\/posts\/6224","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/onload.reinhausen.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/onload.reinhausen.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/onload.reinhausen.com\/en\/wp-json\/wp\/v2\/users\/27"}],"replies":[{"embeddable":true,"href":"https:\/\/onload.reinhausen.com\/en\/wp-json\/wp\/v2\/comments?post=6224"}],"version-history":[{"count":0,"href":"https:\/\/onload.reinhausen.com\/en\/wp-json\/wp\/v2\/posts\/6224\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/onload.reinhausen.com\/en\/wp-json\/wp\/v2\/media\/6305"}],"wp:attachment":[{"href":"https:\/\/onload.reinhausen.com\/en\/wp-json\/wp\/v2\/media?parent=6224"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/onload.reinhausen.com\/en\/wp-json\/wp\/v2\/categories?post=6224"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/onload.reinhausen.com\/en\/wp-json\/wp\/v2\/tags?post=6224"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}