Our increasing reliance on natural gas brings with it both opportunities and dangers during the shift towards renewable energy. This issue deals with some major issues regarding natural gas deployment in industry, power generation, food production, and heating.
Demand side management helps make our power grid more cost-effective and aids in the transition towards renewable energy. It can also be considered as a very green policy on its own, as it reduces the amount of power we need to produce, and thus our impact on the environment.
Everything has its price. Every form of power production has costs in dollars, time, land, materials, pollutants, greenhouse gas emissions, and human deaths. We look at the most important factors for analyzing the feasibility of a proposed power project. Considering only some of these factors will lead to an incomplete picture of power system costs.
Wind power expert Paul Gipe advocates that we deliberately create our green energy future rather than wait around for it to happen. He says that we should aim to democratize our energy production for a more prosperous future.
Achieving sustained nuclear fusion for power production is incredibly challenging. Scientists have been working on this problem for decades. This piece is an overview of the basic concepts and technologies needed for nuclear fusion power. One could also view this as a tutorial, or a crash-course, in fusion power.
Land usage for power systems is a common comparison metric. We demonstrate here that the comparison cannot be conducted meaningfully on such simplistic grounds. Additional factors must be taken into consideration.
Hydroelectricity, or ‘hydro’, is generated from the energy in the water cycle of the earth. The sun evaporates water on the surface of the earth, causing it to rise up to form clouds. Clouds eventually form droplets, which then rain, snow, or hail down to the surface. Water on the surface flows downhill until it evaporates again. During this time it may become trapped in glaciers, lakes, ponds, puddles, or the ocean. Driven by the sun, the water cycle is a truly renewable resource.
Burning coal releases heat energy, but it also releases many other products. Combustion products such as carbon dioxide, water vapour, nitrous oxides, sulphur oxides, particulate matter, and fly ash are also produced in varying amounts.
The intent of this publication is an ongoing investigation of the progress and potential of renewable energy in our world. Our goal is to collect the best writing and news on the subject of renewable energy projects and policies. We have observed that humanity is innovating rapidly as the energy security of the future becomes a global priority. Current trends indicate that the age of coal will end before we run out of coal.
We have been captivated for a long time by the intriguing possibilities inherent in combining Manitoba’s extensive hydro resources with Saskatchewan’s high-quality wind power. A number of other groups in Saskatchewan have been lobbying for greater interconnection between the two power grids to take advantage of the natural synergy that exists between wind power and reservoir-based hydro power.
Our goal is to keep our physical power infrastructure publicly owned, but gain some of the advantages of the private sector. The key to our recommendation is voluntary public investment from the people of Saskatchewan. In order to stimulate new renewable energy construction, we recommend that SaskPower open up renewable energy projects for direct public investment.
What people really want is reliable power. We don’t want to end up freezing in the dark. Electricity is important enough to our society that our energy security is of great importance to us. This is a fundamental issue that all technically advanced nations have to face.
It would be a mistake to equate baseload with reliable. Baseload power sources still have to turn off sometimes. In some cases, the downtimes for the big thermal plants such as nuclear and coal can be several percent of their lifetimes. If our power grid were based off of only baseload sources of this type we might see rolling blackouts now and then unless we built extra power plants to cover the downtime.