i ems a wearable hems for smart grid world by R TABU from uk
designer's own words:
i-ems – a wearable HEMS for smart grid world
Background
MOTION + DESIGN = ENERGY + DESIGN: A unique foresight of the smart grid world
The smart grid technologies potentially will visualise our motion, because we use energies for anything we do.
Manufacturers are developing HEMS (Home Energy Management System) for encouraging consumers to actively interact with energy management, since the success of these technologies will be ultimately depending on the consumer’s positive engagement.
This theory indicates a question: Would better user engagement create more efficiency for the smart grid technology?
The relevancy
Current HEMS design requires access. Users have to start up the exclusive devices or run smartphone applications in order to monitor their energy consumption.
I-EMS on the other hand, behaves like a watch and a real-time feedback enables users to feel that their motions are directly linked to the energy consumption.
This will improve the flow of information between the utility and the consumer which will results a better user engagement and more efficiency for the smart grid technology.
Use
1. I-EMS is a wearable smart grid integrated device which in-cooperate with HEMS to allow users to monitor and control their home or office energy usage.
2. I-EMS provides a real time feedback when users make energy activities.
3. I-EMS can be used as a group. Sharing positive actions shall encourage the enthusiasms of the others.
4. I-EMS users can access to the public sectors or business sectors to receive better deals or services by providing the details of their energy consumption.
5. I-EMS is not an alarm for the over usage or beg users to make an effort. However, it could connect to PC or smartphone applications to run a PDCA (Plan, Do, Check and Action) cycle for the analysis.
The display
• Time
• Overall energy usage of a property or an organisation / day / month
• Current (live) energy usage
• Current energy amount
• Current energy strength
Interface
• The interface is operated by rotating stainless steel ring and pressing the main button (type B)
Casing and component
a. Main button to set the strength and control the interface
b. Stainless steel ring used to set the strength and control the interface
c. LED display
d. Motherboard and microprocessor / Battery
e. Bluetooth paring
f. Sensor
g. Vibration motor
h. TPE and Polypropylene strap / hosing
Also include, Radio for connecting home Wi-Fi network / HEMS
Wi-Fi antenna
i-ems conceptual image 
1. Concept: unlike HEMS, i-ems does not restrict user’s freedom. User can access to the HEMS where ever they are. [jwplayer config=”mplayer” width=”818px” height=”600px” file=”https://static.designboom.com/wp-content/compsub/367312/2012-12-29/video_1_1356804903_9efa5c5dda3d746c5516b64718bf7ff4.mp4″] video
1. i-ems image logo 2. Display: 52mm Diameter. Strap size S / M / L 3. Colour range 4. LED display night light image 
1. Clock 2. Home energy monitor 3. Energy amount i.e. EV battery 4. Energy control i.e. Thermostat 
1. Main button for accessing i-ems 2. Navigate menu by rotating attached steel ring 3. LED display shows representation of energy movements 4. i-ems can connect to the HEMS, smartphone apps or PCs for reviewing [jwplayer config=”mplayer” width=”818px” height=”600px” file=”https://static.designboom.com/wp-content/compsub/367312/2012-12-29/video_2_1356804903_f8a57663bd7334a72cc59f5487d22ef1.mp4″] video
1. A brief description of casing and component