Half-hourly data HHD
Half-hourly data (HHD) also just referred to as Half Hourly (HH) is normally used in relation to energy use, metering or in connection with post occupancy evaluation, energy monitoring or auditing. It simply means that the measuring device can record the amount of energy used in every half-hour period and is normally a function that is offered by modern smart energy meters.
There are a number of potential benefits of tracking energy use every half hour:
- Half hour periods can help in determining cases when and therefore where excess energy is being used.
- Half hour periods can help determine specific times of a day when higher energy is used.
- Half hour period measuring communicated with suppliers can allow them to offer time-of-use energy tariffs that charge less for energy when demand is low.
- Half hour period measuring can help energy suppliers and the grid in managing energy demand and supply as well as predicting high and low use periods.
Half hour data for energy use is increasingly a requirement of energy companies and is supported by government policy through the installation of smart meters.
[edit] Related articles on Designing Buildings
- Articles about electricity.
- Can we keep the lights on.
- Changing patterns in domestic energy use FB 76
- Demand Flexibility Service.
- Developing system intelligence for optimising building electricity networks
- Economy 7, 9 and 10
- Electricity generation
- Electricity supply
- Empower community energy management.
- Energy Use Intensity
- Energy targets for buildings.
- ECA calls on Government to reform and rebalance energy levies and avoid cost of living crisis.
- Electrical consumption.
- Electrical energy.
- Electrical power.
- Electricity bill.
- Energy cost.
- Energy price crisis: ECA calls for energy levy reform.
- Energy tariffs.
- Fuse box.
- From economy 7, 9 and 10 to time-of-use tariffs.
- Smart grid electricity network
- The key trends making our cities greener, safer and smarter
- The Future of Electricity in Domestic Buildings
- The use of batteries to store electricity for buildings
- TV pickup
- Smart electricity tariffs
- Glossary of electrical terms.
Featured articles and news
What they are, how they work and why they are popular in many countries.
Plastic, recycling and its symbol
Student competition winning, M.C.Esher inspired Möbius strip design symbolising continuity within a finite entity.
Do you take the lead in a circular construction economy?
Help us develop and expand this wiki as a resource for academia and industry alike.
Warm Homes Plan Workforce Taskforce
Risks of undermining UK’s energy transition due to lack of electrotechnical industry representation, says ECA.
Cost Optimal Domestic Electrification CODE
Modelling retrofits only on costs that directly impact the consumer: upfront cost of equipment, energy costs and maintenance costs.
The Warm Homes Plan details released
What's new and what is not, with industry reactions.
Could AI and VR cause an increase the value of heritage?
The Orange book: 2026 Amendment 4 to BS 7671:2018
ECA welcomes IET and BSI content sign off.
How neural technologies could transform the design future
Enhancing legacy parametric engines, offering novel ways to explore solutions and generate geometry.
Key AI related terms to be aware of
With explanations from the UK government and other bodies.
From QS to further education teacher
Applying real world skills with the next generation.
A guide on how children can use LEGO to mirror real engineering processes.
Data infrastructure for next-generation materials science
Research Data Express to automate data processing and create AI-ready datasets for materials research.
Wired for the Future with ECA; powering skills and progress
ECA South Wales Business Day 2025, a day to remember.
AI for the conservation professional
A level of sophistication previously reserved for science fiction.
Biomass harvested in cycles of less than ten years.
An interview with the new CIAT President
Usman Yaqub BSc (Hons) PCIAT MFPWS.
Cost benefit model report of building safety regime in Wales
Proposed policy option costs for design and construction stage of the new building safety regime in Wales.
Do you receive our free biweekly newsletter?
If not you can sign up to receive it in your mailbox here.

























Comments
[edit] To make a comment about this article, or to suggest changes, click 'Add a comment' above. Separate your comments from any existing comments by inserting a horizontal line.