ENERGY STAR Finalizes Version 5 of Set-top Box Spec

Tue, 06/14/2016 - 10:22 -- MrGreen

The U.S. Environmental Protection Agency (EPA) recently published Version 5.0 of its ENERGY STAR set-top box specification. Requirements will take effect on January 1, 2017. Set-top boxes (STBs) are devices designed for the purpose of receiving television and related services from terrestrial, cable, satellite, broadband, or local networks.

Changes in Version 5.0 include new efficiency requirements for the full suite of cable, satellite, Internet Protocol (IP), and over-the-top STBs. These changes are expected to save 30 percent (21 kWh) per year over the previous spec. The new spec also plans for the establishment of efficiency levels for thin clients to be met through implementation of deep sleep. These changes will go into effect a year later, in January of 2018.

Also new in Version 5 are incentives for STBs that offer scheduled sleep and installation of multi-room configurations that deliver content with fewer STB units. These are reflected in the in the data below.

Updated Requirements for Version 5


Equation 1: TEC Requirement for STBs


Where:

  • TEC is the Typical Energy Consumption, as calculated in Equation 2 (below)
  • TECMAX is the maximum TEC Specification Requirement—the level for ENERGY STAR certification
  • TECBASE is the topmost applicable Base Type TEC Allowance (kWh), as specified in Table 2 (below)
  • TECADDL_i is each applicable Additional Functionality TEC Allowance (kWh), as specified in Table 3, applied once per functionality unless indicated otherwise with the word "Additional"
  • effac-dc is the standard adjustment for ac-dc power conversion losses that occur at the device powering the STB, and is 1.0 for Ac-powered STBs and 0.85 for STBs with Standard dc.

Equation 2: TEC Calculation


Where:

  • TWATCH_TV is the time coefficient for On Mode as determined per Table 1 (h)
  • PWATCH_TV is the measured power in On Mode (W)
  • TSLEEP is the time coefficient for Sleep Mode as determined per Table 1 (h)
  • PSLEEP is the measured power in Sleep Mode, including Deep Sleep (W)
  • TAPD is the time coefficient for APD as determined per Table 1 (h)
  • TDEEP_SLEEP is the time operating in Deep Sleep State (maximum of 4h)
  • PSLEEP_SP_2 is the measured power in an automatic Scheduled Sleep Mode (W)

Table 1: Operational Mode Durations

Sleep Mode APD Enabled by Default* Automatic Scheduled Sleep TWATCH_TV

Where,
TAPD TIMEOUT is the time
from last user activity to
Auto Power Down
TSLEEP TAPD TDEEP_SLEEP
NO NO 14 10 0 0
NO YES 14 10
TSCHED SLEEP
0 TSCHED SLEEP
deployed duration
YES NO 10 0
YES YES 10
TSCHED SLEEP
TSCHED SLEEP
deployed duration

 

Table 2: Base Type TEC Allowance (TEC BASE)

Base Type (Use Topmost if Multiple Apply) Allowance (kWh/year)
1. Cable DTA 37
2. Cable 50
3. Satellite 50
4. Multichannel Video Programming Distributor (MVPD) Internet Protocol (IP) 40
5. Thin-client / Remote 7 (Applicable after January 1, 2018)
6. Over the top (OTT) Internet Protocol (IP) 7

 

Below is the EPAs timeline for the rollout of Version 5.

Non-Thin Clients:

  • Effective May 13, 2016, manufacturers may elect to have their Certification Body (CB) certify their eligible products to the Version 5.0 requirements.
  • As of October 1, 2016 , CBs will be instructed to stop certifying new product submittals to Version 4.1 . Note, however, that existing certifications will remain valid for purposes of ENERGY STAR qualification until December 31, 2016.
  • Any Non - Thin Client Set-top Box products manufactured as of January 1, 2017, must meet Version 5.0 requirements to bear the ENERGY STAR mark. All certifications of products to the Version 4.1 specification will be invalid for purposes of ENERGY STAR qualification and CBs will only submit product models certified to Version 5.0 to EPA.

Thin Clients:

  • Effective May 13, 2016, manufacturers may elect to have their CB certify their eligible products to the Version 5.0 requirements.
  • As of August 15, 2017, CBs will be instructed to stop certifying new product submittals to Version 4.1. Note, however, that existing certifications will remain valid for purposes of ENERGY STAR qualification until December 31, 2017 .
  • Any Thin Client Set-top Box products manufactured as of January 1, 2018, must meet Version 5.0 requirements to bear the ENERGY STAR mark. All certifications of products to the Version 4.1 specification will be invalid for purposes of ENERGY STAR qualification and CBs will only submit product models certified to Version 5.0 to EPA

To read the spec in its entirety and learn how you may direct your questions, visit the ENERGY STAR website.