The government is serious about the realization of a car calibrist society.What is the appearance that the house should be in 2030?

The path of energy -saving, such as housing up to 2050, was shown

In October 2020, Prime Minister Yoshiyoshi Suga declared, "By 2050, the emission of greenhouse gases will be eliminated as a whole, that is, the aim of realizing the carbon neutral and carbon -sized society."Behind this is the global warming issue that is becoming more serious year by year.The Paris Agreement, which was adopted in 2015, calls for many countries, including major emission countries, to significantly reduce CO2 emissions and to realize carbon nues.It is a declaration in response to this flow.

For the realization of carbon neutral, home reduction and energy consumption at home are also important.Houses also consume a lot of energy, and are required to further save energy and decalbonization.The study meeting summarized the steps that should be a step -saving measure of energy -saving in 2050 (long -term) and 2030 (middle term), and published it.

○ The appearance of houses and buildings to be aimed at in 2050 and 2030 (how to exist)

● 2050: The average energy -saving performance of the ZEH / ZEB standard is secured, and the introduction of renewable energy such as solar power generation equipment is common in rational housing and buildings.

● 2030: For newly built houses and buildings, the energy -saving performance of the ZEH / ZEB standard has been secured, and 60 % of the new detached houses have solar power generation equipment.

The government moves specifically for this what it should be, but I picked up something that would be limited to housing and could affect us.Let's look at the content.

● Bottom -up: In 2025, all houses are required to conform to energy -saving standards, and by 2030, raise the standard to the ZEH level ● Level up: Raise the volume zone of energy -saving performance.By providing support for housing such as ZEH, the guidance standards are raised to the ZEH level, and the standards for long -term excellent housing and low -carbon buildings are raised to the ZEH level, and the standard for energy saving performance will be raised by 2030.● Top -up: Promotes initiatives such as ZEH + and LCCM housing to achieve higher energy -saving levels ● Existing housing: promote energy -saving renovation.

Later will be described later, such as ZEH and LCCM, as to later explain, especially for new housing, the level of "bottom -up", "level -up", and "top -up" is presented.In addition, houses to be built can be raised by mandatory the energy -saving standards, but existing houses cannot be improved unless they are renovated.Therefore, it is also stated that it will promote efficient and effective energy -saving renovation.

Points up to 2025: Obligation to conform to "energy saving standards"

Now, let's organize the standards for energy saving to understand the roadmap.

First, let's explain the energy -saving standard.The energy -saving standard was initially stipulated by the "Rationalization of Energy Use (Energy Save Law)", and was enacted in 1980 (1992) since its establishment in 1980 (1992).) It was amended in 2013 (2013) and has strengthened its content.

Furthermore, in order to save construction of buildings including housing, the "Law on Improving the energy consumption performance of buildings (building material energy -saving method)" has been established, and the building in 2013 slides in 2013.The standard for the Energy Saving Law was enacted.This is the current "energy -saving standard".

The current energy -saving standard is to increase the insulation performance such as the structure of the building and the window around the window (called the outer skin standard), as well as the difference in energy consumption by housing equipment (high -energy -saving water heater.It also uses air conditioner or generating power with solar power (or is called primary energy consumption standards).Furthermore, it is comprehensively measured after complicated calculations, such as taking into account the differences in local climate conditions.

When building a new building, it is necessary to meet this energy -saving standard, and large -scale to medium -sized buildings of non -housing are already being obliged to conform.As for housing, a small house such as a single -family house is obliged to work in a small house (after April 2021, an obligation to explain from architects to architects), and to be notified to medium and large -scale houses (300 square meters or more), such as condominiums.However, in 2025, all houses are expected to be compatible.

Points up to 2030: Energy -saving standards to "ZEH level"

Energy -saving standards are "at least satisfied", and the building physical energy -saving method has a higher "guidance standard", and by 2030, it is included in the roadmap to raise it to the ZEH level.。

Let's explain what ZEH is.ZEH is an abbreviation of "Net Zero Energy House".In addition to increasing the heat insulation and energy saving performance of houses, energy is created by solar power generation, etc., and the annual "primary energy consumption" is net (net), which is generally less than zero.

Mechanism of Net Zero Energy House (ZEH) (Source: Reprinted from the Ministry of Economy, Trade and Industry's materials)

ZEH is spreading in custom -built houses by house makers, but is not yet common.However, by 2030, we are trying to make the minimum energy saving of all houses at the ZEH level.

The standards for certified housing are also raised to the ZEH level, and the promotion of top -level houses is also promoted.

There are other standards for energy saving in housing."Low -carbon buildings" are buildings that have been reduced in carbon based on the "Law on Promotion of Low Carbon in Cities".Measures such as water -saving measures, heat island measures, HEMS (management system that visualizes energy used at home and optimize), solar power generation, and energy management with storage batteries, etc.It is required to take two or more items.

In addition, "long -term excellent housing" is an excellent house that meets the conditions for long -term good condition based on the "Act on Promotion of Promotion of Long -term excellent housing".In addition to energy saving, it is required to meet many conditions such as deterioration measures, barrier -free, maintenance and renewal, and dwelling units.

In any case, you can apply to the jurisdiction administrative agency and receive certification if you meet the certification criteria.Roadmaps are also listed on the ZEH level of each energy -saving certification standard.

"ZEH+" and "LCCM housing" are more energy -saving than the ZEH level."ZEH+(plus)" is a house that enhances primary energy consumption standards and outer skin standards from ZEH and minus the annual primary energy consumption balance by introducing HEMS."LCCM (Life Cycle, Carbon Minus) Housing" has a primary energy consumption through the life cycle of housing until residence and disposal by enhancing energy saving at the time of construction.It is a house that makes the income and expenditure negative.

The roadmap announced this time states that it will promote these top -level energy -saving houses.

With the consideration of expanding the installation of solar power generation facilities in newly built houses

In order to aim for ZEH, you must not only reduce energy consumption, but also create energy.For this reason, it was also considered to be obliged to install solar power generation facilities, but on the roadmap, 60 % of the detached houses by 2030 will be installed, and the installation will be generally installed by 2050.I am aiming for.For this reason, we are also looking for a support system for low cost and installation.

Finally, this summary shows the implementation plan (how to proceed) for housing and buildings, to the realization of 2050 carbon nectar and the realization of an ambitious goal of 46%reduction in 2030 in FY2030."The Ministry of Land, Infrastructure, Transport and Tourism, the Ministry of Economy, Trade and Industry, and the Ministry of the Environment do not have the idea that carbon neutral can be realized by 2050, and continuously so that the vision (there is) can be realized as soon as possible.We ask for effort. "In other words, the study group has declared the "2050 Carbon Nu Tral" and says that you should try high hurdles.

It does not necessarily mean that it will be on the roadmap, but it is certain that the energy saving performance of the house will increase.As a result, construction costs will increase and the impact on housing prices will be increased, but the benefits of more comfort than costs are greater.Global warming increases the risk of heat stroke, and the electricity bill will increase due to long -term cooling, so I would like to greatly expect the energy saving of houses.