claim: […]until we develop a practical, cost-competitive alternative to fossil fuels, it is unlikely that renewable energy will ever make up more than 15-20% of global energy requirements.
evidences.evidence_id: Cellulosic ethanol:188
evidences.article: Cellulosic ethanol
evidences.evidence: "The production of cellulosic ethanol represents not only a step toward true energy diversity for the country, but a very cost-effective alternative to fossil fuels.
evidences.votes: SUPPORTS SUPPORTS
evidences.evidence_id: Nuclear power debate:47
evidences.article: Nuclear power debate
evidences.evidence: The World Nuclear Association argues that: "Obviously sun, wind, tides and waves cannot be controlled to provide directly either continuous base-load power, or peak-load power when it is needed,..." "In practical terms non-hydro renewables are therefore able to supply up to some 15–20% of the capacity of an electricity grid, though they cannot directly be applied as economic substitutes for most coal or nuclear power, however significant they become in particular areas with favourable conditions."
evidences.votes: SUPPORTS REFUTES
evidences.evidence_id: Renewable energy:273
evidences.article: Renewable energy
evidences.evidence: According to the International Energy Agency, biofuels have the potential to meet more than a quarter of world demand for transportation fuels by 2050.
evidences.votes: SUPPORTS SUPPORTS
evidences.evidence_id: Renewable energy:34
evidences.article: Renewable energy
evidences.evidence: National renewable energy markets are projected to continue to grow strongly in the coming decade and beyond, and some 120 countries have various policy targets for longer-term shares of renewable energy, including a 20% target of all electricity generated for the European Union by 2020.
evidences.votes: SUPPORTS SUPPORTS
evidences.evidence_id: Renewable energy:91
evidences.article: Renewable energy
evidences.evidence: Globally, the long-term technical potential of wind energy is believed to be five times total current global energy production, or 40 times current electricity demand, assuming all practical barriers needed were overcome.
evidences.votes: SUPPORTS SUPPORTS