renewables

<p>I’m a big fan of <a href="/tags/sandbattery/" rel="tag">#sandbattery</a> thermal <a href="/tags/renewable/" rel="tag">#renewable</a> <a href="/tags/energy/" rel="tag">#energy</a> storage technology. One of the first players in this market is the Finnish startup Polar Night Energy: <a href="https://polarnightenergy.com" rel="nofollow"><span class="invisible">https://</span>polarnightenergy.com</a> If you do not know what sand batteries are, this article explains them quite well: <a href="https://natnavi.com/science-behind-sand-batteries/" rel="nofollow" class="ellipsis" title="natnavi.com/science-behind-sand-batteries/"><span class="invisible">https://</span><span class="ellipsis">natnavi.com/science-behind-san</span><span class="invisible">d-batteries/</span></a> <a href="/tags/renewables/" rel="tag">#Renewables</a></p>

<p>Coal power is finally retreating in the world’s two largest markets. For the first time since 1973, both China and India saw coal generation drop in 2025 thanks to a relentless clean energy boom. We are witnessing the beginning of the end for the coal era. <br>​<br>​<a href="/tags/climateaction/" rel="tag">#climateaction</a> <a href="/tags/renewables/" rel="tag">#renewables</a> <a href="/tags/coaldecline/" rel="tag">#coaldecline</a> <a href="/tags/cleanenergy/" rel="tag">#cleanenergy</a> <a href="/tags/coal/" rel="tag">#coal</a> <a href="/tags/fossilfuels/" rel="tag">#fossilfuels</a> </p><p><a href="https://www.theguardian.com/business/2026/jan/13/coal-power-generation-falls-china-india-since-1970s" rel="nofollow" class="ellipsis" title="www.theguardian.com/business/2026/jan/13/coal-power-generation-falls-china-india-since-1970s"><span class="invisible">https://</span><span class="ellipsis">www.theguardian.com/business/2</span><span class="invisible">026/jan/13/coal-power-generation-falls-china-india-since-1970s</span></a></p>