having its fuel in spherical form. The fuel consists of UO2 kernels within a Zr matrix which is then coated by an outer layer of Zr. These fuel elements are typically 15 mm in diameter, providing energy within a spatial constraint and serving a dual purpose as it can also be used as a desalinization plant making it suitable for developing countries. In addition to reducing substrate deformation effects and decreasing nano hardness improving the overall efficiency of the reactor. Whilst other proposed reactor designs use molten salt technology which have high thermal efficiency, are smaller, and have 50% higher overall power generation compared to traditional nuclear reactor technology. These innovative technologies created and perfected in industrialized countries with long histories of peaceful nuclear energy production can provide an impetus for private corporations to conduct technology transfer via energy subsidies, funded by developed countries. Allowing responsible developing countries who foresee large energy demands and in the near future expect to build more nuclear plants with the possibility of a fully renewable, highly dense fuel source. Target 7.b: Expand and upgrade energy services for developing countries The fifth target of SDG 7 is formulated as: "Target 7.b: By 2030, expand infrastructure and upgrade technology for supplying modern and sustainable energy services for all in developing countries, in particular least developed countries, small island developing States, and land-locked developing countries, in accordance with their respective programs of support." It has one indicator: Indicator 7.5.1 is the "Investments in energy efficiency as a proportion of GDP and the amount of foreign direct investment in financial transfer for infrastructure and technology to sustainable development services". As of August 2020, there is no data available for this indicator. It was reported in 2020 that Indicator 7.b.1 might be removed as it is identical with indicator 12.1.1 of SDG 12. Energy sector investment related to all SDG 7 targets will need to more than double in order to achieve these goals. Between 2018 and 2030, the annual average investment will need to reach approximately $55 billion to expand energy access, about $700 billion to increase renewable energy and $600 billion to improve energy efficiency. Custodian agencies Custodian agencies are in charge of reporting on the following indicators: Indicators 7.1.1 and 7.1.2: World Bank (WB) and World Health Organization (WHO). Indicator 7.2.1: Department of Economic and Social Affairs-Statistics Division (DESA/UNDP), International Energy Agency (IEA) and International Renewable