September 24, 2021
Sumitomo Realty & Development Co., Ltd.

Energy generating house with AI to use energy efficiently
Supporting the family for three days until lifelines are restored in case of disaster“Sumitomo-Fudosan-no-Miraino-Ie” is launched

Sumitomo Realty & Development Co., Ltd. (Headquarters: Shinjuku-ku, Tokyo; President: Kojun
Nishima, hereinafter “Sumitomo Realty”) is pleased to announce that it began sales of the"Sumitomo-Fudosan-no-Miraino-Ie"(Sumitomo Realty’s next-generation home), a custom homepackage product with equipment that protects the environment and supports daily living, on
September 4th. It is a part of its custom home construction business, which receives orders for
2,500 new houses annually.

Features of the "Sumitomo-Fudosan-no-Miraino-Ie"
1. Environmentally friendly, energy self-sufficient home
To achieve a carbon neutral society, adding storage batteries to solar power generation systems
will become the standard for the future. To that end, we have started providing the industry-first*¹"SUMIFU x ENEKARI" service jointly developed with TEPCO Energy Partner, Inc. With this service,
we install solar power generation systems and storage batteries at a "zero initial cost" and provide
support semi-permanently.
2. IoT home utilizing AI-HEMS
In the "Sumitomo-Fudosan-no-Miraino-Ie," AI will estimate power consumption based on living
patterns and the amount of power generated from the next day’s forecast for solar radiation. By
making effective use of surplus power, it will contribute to saving on electricity costs and ultimately
to achieving a carbon neutral society. It also enables controlling of the air conditioning, electricwindow shutters, water heater, electric locks, and lights via smartphone away from home, making
life more convenient and comfortable.
3. Disaster preparation
With the increase in natural disasters such as earthquakes and typhoons, there is an increasingneed for homes that can, in addition to the safety of the building structure, provide peace of mindby supporting continuance of people's daily lives even if lifelines such as water or electricity aretemporarily lost. As it is generally said that it takes approximately three days*² for public services torespond to a power outage or suspension of water supply, "Sumitomo-Fudosan-no-Miraino-Ie" isequipped with "solar power generation,” “storage batteries," a "potable water storage system” anda “rainwater storage tank" to secure electricity, drinking water and water for daily use forPhoto
aboutof finishedexterior
three days, so you can live safely and comfortably at home even in the event of a disaster.
*1 A first in the industry of solar power generation equipment installation where a major infrastructure group supports equipment repairs and upgrades for the entire period ofresidency (based on our own research).
*2 According to the Ministry of Health, Labor and Welfare, 78.8% of electricity was restored three days after the Great East Japan Earthquake. Information on water is from theFire and Disaster Management Agency "Important information on countermeasures against earthquake disasters" of the Ministry of Internal Affairs and Communications.

1. Environmentally friendly, energy self-sufficient home[Feature 1] “SUMIFU x ENEKARI”— Solar power generation & storage battery installation,
and a "long-term" support service that provides peace of mind
"SUMIFU x ENEKARI" is an industry-first service*¹ that provides customers with peace of mind
through semi-permanent use of solar power generation. With the payment of a fixed service fee only,
it installs solar power generation equipment and storage batteries at a "zero initial cost," and provides
support including equipment repairs and upgrades for the entire period of residency.
[Feature 2] Toward achieving a carbon neutral society by reducing greenhouse gas emissions
One characteristic of solar power generation is that it produces clean, endless renewable energy. The
introduction of a solar power generation system for "energy creation" and storage batteries for "energysaving," combined with high insulation and airtight specification of the house, makes it compatible withzero-energy housing (ZEH).*2
Solarpowergeneration

Solar carport

High efficiency
air-conditioning
EcoCuteIH cooking
heaterStoragebattery*1 A first in the industry of solar power generation equipment installation where a major infrastructure group supports equipment repairs and upgrades for the entire
period of residency (based on our own research).
*2 ZEH: Abbreviation for Net Zero Energy House. A house that consumes virtually zero energy by combining energy saving and energy creation.

2. IoT home utilizing AI-HEMS[Visualizing the power created and stored, and using it intelligently]
During the day, it uses solar power, and at night when the electricity cost is relatively low, it charges
the storage battery. In the morning and evening, it uses electricity from the battery, thus saving onelectricity bills. Moreover, by linking with AI-HEMS, it uses electricity intelligently without waste.
Solar power
generation system
Intelligentuse

Off-peakenergy
hours

CreateUse in thehome

Solar power
generation

Store or sell
surpluspowerStore

Off-peakenergyhours

CreateStore
Storage battery
Electricity

Charging

StandDischarging
byPurchaseStand-by*1

Discharging

Self-generated

Charging
Purchase

Powergeneration*1: Does not discharge when charging.

UseintelligentlyPower
consumption

Cloud HEMS
Storage battery*2*2: This is just an image. The actual equipment has
piping, etc. running from it.

["COCORO ENERGY" to manage energy to suit your lifestyle]
AI in the cloud linked with the HEMS controls energy intelligently based on external information andthe pattern of electricity use in each household. We will support people’s next-generation lifestyles
by expanding the way we use environmentally friendly energy.
*COCORO ENERGY is a service developed and provided by Sharp Corporation.

2020
2020
New Energy Award
Agency for the Natural
Resources and Energy
Award

Winner of the New
Energy Award

Achieved by proprietary AI! An energy management
service that supports people

Through the use of AI, COCORO ENERGY improves the consumption rate ofself-generated electricity by solar power, and automatically charges storage
batteries in case of a power outage in conjunction with lightning warnings.
These points were highly evaluated to win the award.

Three advantages of "COCORO ENERGY"
Charges the right amount of energy automatically calculated according to the weather― Peace of mind!
You can check the power generation and consumption status with your smartphone― Convenient!
You can control home devices away from home via your smartphone— Convenient!

Intelligent control of storage batteries
by AI linked with weather forecasts"Visualization of power" including
generation and consumption status

It is equipped with an industry-first* "AI lightning
alert coordination" function. While a lightning alert
is being issued, it checks the battery charge level
and automatically determines and charges just theamount of power necessary. At the same time, thewindow shutters close automatically, so you canrest assured.

With your smartphone, you can check the status ofpower generated, consumed and sold of your solar
power generation system, as well as notifications
such as when the battery started charging in
preparation for a power outage when a weather
alert is issued due to a typhoon, etc.

* In-cloud services controlling storage batteries in line with weather
information (Sharp survey, from July 1, 2020 onward).
HEMS (JH-RV11/JH-RVB1) is required.

What happens when a lightning alert isissuedAI uses the pattern of yourdaily power consumption toestimate the amount ofenergy necessary in case of apower outage.

AI charges the storage batteries
with the necessary amount ofpower it estimated in case of apower outage caused by lightning.

Daily living patternCharges
only theneededamountAI estimation

Service isavailable at thetouch of yourfingertips

Storage batteries

Necessary amount of power
during a power outage

Control your home devices via
smartphone away from home

You can control the air conditioning, electric window
shutters, water heater, electric locks, and lights
away from home.

3. Disaster Preparation
We have been providing homes with excellent earthquake resistance and damping system toprevent damage to the house or furniture from falling over. With the recent increase in natural
disasters such as earthquakes and typhoons, we will ensure homes that are not only structurallysafe, but also are safe and comfortable for people to stay in even after a disaster.
[A home that is friendly to people and the environment
with "solar power" and "storage batteries”]
It is said that power outages occur in approximately 50% ofregions following a disaster,*¹ and it takes approximately
three days to restore electricity.*² By installing a "solar power
generation system" and "storage batteries," it secures theminimum amount of electricity necessary for approximately
three days even in the event of a power outage.

When the storage batteries have acapacity of 4.2 kWh, then can power

these pieces of equipment for

Approximately 3 days!*¹

Refrigerator*2
24 hrs./dayTV
3 hrs./dayLights
5 hrs./day

Smartphone charging
1 smartphone*3/day*1:Calculation based on a simulation where storage batteries were used together with solar power generation (approx. 4.2 kW). Under a condition of 2 kWh/day ofelectricity generated (estimated by the manufacturer), assuming days with less sunlight, during the rainy season in Japan. *2:Inverter controlled refrigerator with a
400 L capacity. *3:Charging for approximately 2.5 hours per smartphone.
● Equipment needs to be connected to dedicated wiring beforehand to be used during a power outage. The dedicated wiring supports use up to 1,500 W during both
power outages and normal use (the equipment in the above example cannot necessarily be used at the same time).

[Securing water with a "storage system" and "storagetank”]
After a disaster, approximately 50% of the city area is cut off
from water,*³ and it is said that it takes approximately 3days*⁴ before public services respond with measures suchas tank cars delivering water or provision of an emergency
water supply. Drinking water is secured for approximately 3days with the "potable water storage system," and water fordaily use for approximately 2.5 days with the "rainwater
storage tank."
Estimated drinking water needed = 8 L/day
for a family of 4

Estimated water for daily use needed = 40 L/day
for a family of 4

For always clean water:Collecting water from the rain gutter:

Thissystemstorespotable water in the
Potable water storage
under-floor water supplysystemroute and allows easy
access to water in theevent of an outage. Since
the system is installed in
the piping space beneaththe floor, there is no needto secure an installation location within theliving space itself. It is also hygienic as it isconstantly replaced with fresh tap water
through daily water supply use.

24 L ÷ 8 L/day ≒ 3 days' worth

Rainwater storagetank

Storing rainwater secures water for dailyuse, such as for laundry and toilets,
when the water supply is cut off inearthquakes and other emergency
circumstances. Its capacity is a reliable
100 liters. It can also be used in theinitial extinguishing of fires, givingresidents a great sense of security
through the availability of water.
(Note: This is not potable water.)

100 L ÷ 40 L/day ≒ 2.5 days' worth*1,3: Hypothetical damage from an earthquake that directly hits the Metropolitan area / damage and condition of infrastructure, lifelines, etc. (Disaster Prevention Information,Cabinet Office)*2: According to the Ministry of Health, Labor and Welfare, 78.8% of electricity was restored three days after the Great East Japan Earthquake*4: Information on water is from the Fire and Disaster Management Agency "Important information on countermeasures against earthquake disasters" of the Ministry of Internal
Affairs and Communications.

(+ α) Achieving a clean living environment[Using materials that are not only aesthetically appealing and weather resistant, but are alsofriendly to people and the environment]
When sunlight (ultraviolet light) comes into contact with the exterior wall coated with photocatalyst,
the active species are generated and break down viruses and bacteria on the surface, providing asafe living environment.
In addition, the interior walls, flooring, and handrails have antimicrobial and anti-viral treatment
coatings.

<Interior>
1. Uses safe and secure anti-viral EB
decoration sheets
Anti-viral flooring
2. Reduces the number of viruses
Anti-viral stair handrails
3. Inactivates viruses and suppresses
bacterial growth
Anti-viral wallpaper<Outdoors>
Oxidizes harmful pollutants such as NOX(nitrogen oxides) found in vehicles‘
exhaust gas into harmless ions, which are
washed away with rain. Its air purification
capacity is 165 ㎡ (approximately onehouse), equivalent to 12 poplar trees.

*Test value: Estimated NOx purifying power per poplar tree was 0.57g/day[Contribution to SDGs]
The initiatives related to this release
contribute to the following SDG objectives:
Goal 6
Goal 7
Goal 11
Goal 13
Goal 17

CLEAN WATER AND SANITAIONAFFORDABLE AND CLEAN ENERGYSUSTAINABLE CITIES AND COMMUNITIESCLIMATE ACTIONPARTNERSHIPS FOR THE GOALS