[FY2026] "Homes where you can live even during a power outage" can be created. Eneco, a solar tech company, significantly strengthens installation support with 101.2 billion yen in Tokyo Metropolitan Government subsidies.
Eneco Co., Ltd. has announced the full-scale strengthening of its support system for introducing solar power generation and storage batteries, and the expansion of its consulting services, in response to a significant increase in renewable energy-related subsidies from the Tokyo Metropolitan Government for FY2026 (Reiwa 8). The Tokyo Metropolitan Government's budget for renewable energy is expected to increase from approximately 70.2 billion yen in FY2025 to approximately 101.2 billion yen in FY2026, an increase of about 30 billion yen (143% year-on-year), making it the largest ever. Against this backdrop, the company aims to maximize the utilization of subsidies and accelerate decision-making for introduction by combining an effectively zero initial cost model, a subsidy difference guarantee, free application support, and a pre-application preparation system.
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- 📰 Published: May 2, 2026 at 04:00
- 🔍 Collected: May 1, 2026 at 19:31
- 🤖 AI Analyzed: May 1, 2026 at 20:07 (35 min after Collected)
Eneco Co., Ltd. (Headquarters: Shibuya-ku, Tokyo; Representative Director: Yuma Sawada), which develops one-stop services across energy, construction, and real estate, has announced the full-scale strengthening of its support system for introducing solar power generation and storage batteries, and the expansion of its consulting services, in response to a significant increase in renewable energy-related subsidies from the Tokyo Metropolitan Government for FY2026 (Reiwa 8). The Tokyo Metropolitan Government's budget for renewable energy is expected to increase from approximately 70.2 billion yen in FY2025 to approximately 101.2 billion yen in FY2026, an increase of about 30 billion yen (143% year-on-year), making it the largest ever. Against this backdrop, the company aims to maximize the utilization of subsidies and accelerate decision-making for introduction by combining an effectively zero initial cost model, a subsidy difference guarantee, free application support, and a pre-application preparation system.
■ "The Reality of Residential Energy" as Shown by the Tokyo Metropolitan Government
According to official data from the Tokyo Metropolitan Government, approximately 70% of CO2 emissions in Tokyo come from buildings, and energy consumption in the household sector is on an upward trend. Furthermore, it is estimated that approximately 70% of homes will be rebuilt by 2050, indicating the premise that urban transformation will be difficult without changing the energy structure of homes themselves.
■ Tokyo is a "City that Must Be Energy Self-Sufficient"
The Tokyo Metropolitan Government faces constraints on power plant sites and relies heavily on external sources for much of its energy supply. Japan as a whole also depends on overseas sources for most of its resources, so electricity costs fluctuate significantly due to external factors such as fuel prices, exchange rates, and international affairs. Electricity bills have become a structural cost that cannot be controlled by the efforts of companies or households alone.
■ Electricity Bills are Already a "Continuously Rising Cost"
Electricity rates have changed significantly over the past 10 years. What was once around 20 yen/kWh has now reached 30-40 yen/kWh, and in some cases, it has effectively doubled depending on contract conditions. Particularly since 2022, the short-term increase has been remarkable, and electricity bills are no longer something that might rise in the future, but are already being recognized as a continuously rising cost.
■ The Idea of "Avoidance" Rather Than "Reduction"
In this situation, what is important is not how to suppress electricity bills, but to review the structure of continuously buying electricity itself. As future prices are unpredictable, a shift in perspective is required from "how much can I afford to pay" to "how can I avoid being affected."
■ Shift to Decentralized Energy
Current energy policy is shifting from a centralized system dependent on large-scale power generation to a decentralized system where each household generates its own power. Solar power generation and storage batteries are positioned as one means of suppressing the risk of fluctuations in electricity costs, as they are less susceptible to external environmental factors.
■ The Essence of the 101.2 Billion Yen Subsidy
This expansion of subsidies is not merely a strengthening of support, but signifies a transition to a society where introduction is a prerequisite. By expanding the number of eligible cases, streamlining the application process, and strengthening information provision, a structure is being formed where there are fewer reasons not to introduce. As a result, applications are concentrated and budgets are quickly depleted, creating a situation where conditions can change by hundreds of thousands of yen depending on the timing of introduction.
■ Utilizing Subsidies Exceeding 4.5 Million Yen
In FY2026, by combining subsidy schemes from the Tokyo Metropolitan Government, the national government, and municipalities, it may be possible to apply for a total of over 4.5 million yen in subsidies depending on the conditions. In particular, combining solar power generation with large-capacity storage batteries (20-30kWh class) tends to accumulate more subsidies.
■ Reasons Why Large Capacity is Considered Rational
Under the current system, the subsidy amount increases with the capacity of the storage battery. By increasing the capacity, the subsidy also increases, thereby suppressing the increase in the actual burden. For this reason, large capacities are increasingly becoming more rational than small capacities.
■ "Staying Home During Disasters" as a Realistic Option
In the Tokyo metropolitan area, risks such as large-scale power outages, lack of evacuation shelters, aging population, and issues with pets are becoming apparent, and the idea of "staying home during disasters" to maintain life at home is spreading as a realistic option. Solar power generation and storage batteries play a role in transforming homes into infrastructure that can function even in emergencies.
■ Eneco's Role
Even with improved systems, cases where introduction does not proceed due to reasons such as "it's hard to understand," "the timing is difficult," or "I don't want to lose money" are not uncommon. The fundamental issue is not "lack of understanding" but "difficulty in decision-making."
Eneco provides services that support the introduction decision itself through a subsidy difference guarantee, free application support, an effectively zero initial cost model, and a pre-application preparation system. The Tokyo Metropolitan Government's policy indicates not a choice of "whether to introduce or not," but a transition to a "society where introduction is a prerequisite." The moment a power outage occurs, that home becomes functional.
■ "The Reality of Residential Energy" as Shown by the Tokyo Metropolitan Government
According to official data from the Tokyo Metropolitan Government, approximately 70% of CO2 emissions in Tokyo come from buildings, and energy consumption in the household sector is on an upward trend. Furthermore, it is estimated that approximately 70% of homes will be rebuilt by 2050, indicating the premise that urban transformation will be difficult without changing the energy structure of homes themselves.
■ Tokyo is a "City that Must Be Energy Self-Sufficient"
The Tokyo Metropolitan Government faces constraints on power plant sites and relies heavily on external sources for much of its energy supply. Japan as a whole also depends on overseas sources for most of its resources, so electricity costs fluctuate significantly due to external factors such as fuel prices, exchange rates, and international affairs. Electricity bills have become a structural cost that cannot be controlled by the efforts of companies or households alone.
■ Electricity Bills are Already a "Continuously Rising Cost"
Electricity rates have changed significantly over the past 10 years. What was once around 20 yen/kWh has now reached 30-40 yen/kWh, and in some cases, it has effectively doubled depending on contract conditions. Particularly since 2022, the short-term increase has been remarkable, and electricity bills are no longer something that might rise in the future, but are already being recognized as a continuously rising cost.
■ The Idea of "Avoidance" Rather Than "Reduction"
In this situation, what is important is not how to suppress electricity bills, but to review the structure of continuously buying electricity itself. As future prices are unpredictable, a shift in perspective is required from "how much can I afford to pay" to "how can I avoid being affected."
■ Shift to Decentralized Energy
Current energy policy is shifting from a centralized system dependent on large-scale power generation to a decentralized system where each household generates its own power. Solar power generation and storage batteries are positioned as one means of suppressing the risk of fluctuations in electricity costs, as they are less susceptible to external environmental factors.
■ The Essence of the 101.2 Billion Yen Subsidy
This expansion of subsidies is not merely a strengthening of support, but signifies a transition to a society where introduction is a prerequisite. By expanding the number of eligible cases, streamlining the application process, and strengthening information provision, a structure is being formed where there are fewer reasons not to introduce. As a result, applications are concentrated and budgets are quickly depleted, creating a situation where conditions can change by hundreds of thousands of yen depending on the timing of introduction.
■ Utilizing Subsidies Exceeding 4.5 Million Yen
In FY2026, by combining subsidy schemes from the Tokyo Metropolitan Government, the national government, and municipalities, it may be possible to apply for a total of over 4.5 million yen in subsidies depending on the conditions. In particular, combining solar power generation with large-capacity storage batteries (20-30kWh class) tends to accumulate more subsidies.
■ Reasons Why Large Capacity is Considered Rational
Under the current system, the subsidy amount increases with the capacity of the storage battery. By increasing the capacity, the subsidy also increases, thereby suppressing the increase in the actual burden. For this reason, large capacities are increasingly becoming more rational than small capacities.
■ "Staying Home During Disasters" as a Realistic Option
In the Tokyo metropolitan area, risks such as large-scale power outages, lack of evacuation shelters, aging population, and issues with pets are becoming apparent, and the idea of "staying home during disasters" to maintain life at home is spreading as a realistic option. Solar power generation and storage batteries play a role in transforming homes into infrastructure that can function even in emergencies.
■ Eneco's Role
Even with improved systems, cases where introduction does not proceed due to reasons such as "it's hard to understand," "the timing is difficult," or "I don't want to lose money" are not uncommon. The fundamental issue is not "lack of understanding" but "difficulty in decision-making."
Eneco provides services that support the introduction decision itself through a subsidy difference guarantee, free application support, an effectively zero initial cost model, and a pre-application preparation system. The Tokyo Metropolitan Government's policy indicates not a choice of "whether to introduce or not," but a transition to a "society where introduction is a prerequisite." The moment a power outage occurs, that home becomes functional.