张雅楠zeyarna的博客

昨天稍微放松了一下，又想继续看看我们的光伏，我一直在想我们的城市化改变了什么? 我们住得更近了，社会协作更容易了，公共服务成本更低了，我们的社会福利更便宜更便捷了。。。那其他的呢？

我们离大自然更远了，我们的人口消费更重要了，我们消费后的后遗症更多了。我们的城市不属于地球大自然。。。

我们消费了住房和汽车，城市从森林变成了土壤再变成了水泥，于是我们的城市不透水会被淹，没有了植物和土壤不吸热，我们的食物垃圾和粪便没有地方去。。。

对于城市群导致的不吸收太阳能而产生的高温，我粗略的检索了一下，我惊愕的发现竟然长江口是全国最高的地方，温度高于了广州和海南。。。因为城市群密集和植被稀少

让我们的城市降温，更舒服些。。。绿化吗？真的没有那么多地方。。。但我们有很多房屋和房顶，乃至道路。。。

你知道我们目前人均年电是多少吗？2025年全社会用电量为103682亿千瓦时，折算人均7200千瓦时（含工业），也就是我们完全用光伏发电的话应该为820瓦。按照目前的太阳能吸收率计算每平米200瓦，大约需要4-5平米的太阳能板。按照人口密度最高的城市上海来计算一共需要2500万人口*5平米=125平方公里太阳能板面积。你知道上海有多大面积吗？6340.5平方公里。。。我们还怕吗，还担心吗？那么后面就担心一下我们的气候，气温、土壤和蛋白质循环。。。当我们的屋顶都有光伏的时候，你们可以想出来我们的气温会是什么样子吗？

Yesterday I relaxed a little and wanted to continue looking at our photovoltaics, I have been thinking about what has changed in our urbanization? We live closer, social cooperation is easier, public service costs are lower, and our social welfare is cheaper and more convenient… What about the rest?

We are farther away from nature, our population consumption is more important, and we have more sequelae after consumption. Our cities do not belong to the earth nature…

We consume houses and cars, cities change from forests to soil and then to cement, so our cities will be flooded without impermeable water, without plants and soil without heat, our food waste and feces have nowhere to go…

I did a rough search for the high temperature caused by the urban agglomeration not absorbing solar energy, and I was shocked to find that the Yangtze River Estuary is the highest place in the country, and the temperature is higher than that of Guangzhou and Hainan… Because the urban agglomeration is dense and the vegetation is sparse

Let our city cool down and be more comfortable… Is it green? There really aren’t that many places… But we have a lot of houses and roofs, and even roads…

Do you know what our current per capita annual electricity is? In 2025, the electricity consumption of the whole society will be 103682 billion kWh, which is equivalent to 7,200 kWh per capita (including industry), that is, if we use photovoltaic power generation, it should be 820 watts. At the current solar absorption rate, 200 watts per square meter requires about 4-5 square meters of solar panels. According to Shanghai, the city with the highest population density, a total of 25 million people * 5 square meters = 125 square kilometers of solar panel area are required. Do you know how big Shanghai is? 6340.5 square kilometers… Are we still afraid, are we still worried? Then worry about our climate, temperature, soil and protein cycle..When we have photovoltaics on our roofs, can you imagine what our temperature will be like?