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1. Peak Capacity Power Min 3W Min 50W Min 200W Min 800W Min 2kW
capacity Min 12 Wh Min 200Wh Min 1.0kWh Min 3.4kWh Min 8.2kWh
ratings in W
28
or daily Wh)

Lighting of Electrical
1,000 lmhr/ lighting, air
day circulation,
OR television,
Services and phone
charging are
ATTRIBUTES 2. Availability Hours per day Min 4 hrs Min 4 hrs Min 8 hrs Min 16 hrs Min 23 hrs
possible
(Duration)
Hours per
evening Min 1 hr Min 2 hrs Min 3 hrs Min 4 hrs Min 4hrs
3. Reliability Max 14 Max 3 disruptions per week
disruptions per of total duration <2hrs
week
4. Quality Voltage problems do not affect the use of desired
appliances
5. Affordability Cost of a standard consumption package of 365 kWh/year < 5%
of household income
6. Legality Bill is paid to the utility, pre-paid card seller, or
authorised representative
7. Health & Safety Absence of past accidents and perception of high
risk in the future

Figure 97: Multi-Tier Matrix for Measuring Access to Household Energy Supply
• The World Bank Group through its Lighting Global program commissioned the Off Grid Solar Trends report.
The research was undertaken by Bloomberg New Energy Finance with support by GOGLA. The first report
was released in February 2016. This is then the start of Lighting Global and GOGLA undertaking twice-
yearly market surveys and producing the Global Off-Grid Solar Semi-Annual Market Reports. Some key
data from reports are shown in the following figure 127 and 128.

By end of 2019
• Nearly 180 million people have benefited from using Lighting Global quality verified solar products, and
more than 52.4 million people are currently meeting their basic (Tier 1) electricity needs. More than 42.1
million quality verified products have been sold since 2009. Since then, 37 million metric tons of carbon-
dioxide equivalent (CO ) have been avoided due to the use of quality verified products instead of fuel-
2e
based alternatives.
• An estimated 420 million people worldwide are benefitting from off-grid solar products but only 55% of
these people (231 million) currently benefit from Tier 1 or better access to electricity.

ISES SWC50 - The Century of Solar-Stories and Visions | 313