Mythbusting: "Burning waste to produce district heating is not climate-friendly"

Svein love slide, CEO of Statkraft Varme, responds to claims about district heating.

1. "Burning waste to produce district heating is not climate-friendly."

Answer: First and foremost, waste is not burned primarily to produce district heating. 2009年，挪威禁止在垃圾填埋场倾倒垃圾, and waste incineration is part of the national waste management system. Everything that cannot be reused or recycled is delivered to an incineration plant that ensures proper final treatment through stringent requirements for flue gas cleaning. 在这里, 不需要的环境气体被排除在循环系统之外, and the energy is recovered and delivered to district heating. Incineration with energy recovery results in a significant reduction in greenhouse gas emissions compared to the alternative, 也就是垃圾填埋场.

集中供热 plants utilise the surplus heat from waste incineration to provide warm water and heating to homes, 学校, 医院, 商业楼宇及工业楼宇. In this way district heating plants make use of resources that would otherwise go to waste.

2. "集中供热 depends on us generating more and more waste at a time when we have to lower our consumption."

Answer: As long as we as a society have waste that must be incinerated, 利用余热是有意义的. 在今天的挪威, surplus heat from waste incineration accounts for slightly less than half of the energy sources used for district heating. 来自工业工厂的余热, 生物燃料, biogas and off-peak electricity are other sources that can be used. This makes district heating a flexible and robust system that can at any given time utilise various energy sources and surplus heat in society.

下一代区域供热, 哪个在比现在更低的温度水平下运行, 还将能够利用余热从, 例如, 数据服务器园区和冷冻工厂.

3. "New buildings produce their own energy and do not need district heating."

Answer: It is positive that the construction 行业 is constantly evolving and reducing our collective energy needs. 然而, a building with an annual surplus of self-produced heat will not maintain this surplus throughout the year. There are opportunities here in the interaction between buildings and district heating networks to exchange energy. Although energy efficiency is improving in new and existing buildings, high densities provide a good basis for district heating in urban areas.

4. "集中供热 is a costly dead end on the road to the electrified society."

答:如果要实现气候目标, 社会的电气化是必要的, based partly on increased production of renewable energy from wind and 太阳能发电. 集中供热 can play an important role through closer interaction between the thermal system and the power system. 通过满足加热和冷却的需要, district heating can allow other energy needs to be met with electricity without increasing the power supply to the area in question.

5. “挪威水力发电产生的清洁能源超过了十大靠谱网赌的需求, 所以区域供热系统是多余的."

答:十大靠谱网赌不能孤立地看待挪威的水力发电. 挪威是北欧电力市场的一部分, 哪里有超过一半的能源来自化石能源. In other words, there is a need for more renewable energy in this market.

Although electricity in 挪威 mainly comes from renewable sources, almost half of our total energy needs are met by fossil sources, 比如交通运输. The electrification of society will require more renewable energy.

The district heating network takes some of the load off the electricity grid since district heating is a flexible system that can use various types of energy sources.