Renewable energy discussion
Making aluminum green is easy with renewable energy. While there are some more substantial technologies to make sure that aluminum is even lower emissions, an easy start is to contract for renewable energy and storage.
100% Renewable energy in 134 countries with a payback of less than 6 years by replacing the costs of existing fossil fuel, nuclear electricity and using wind water and solar along with storage.
100% Renewable Energy in 145 Countries in 6 Years Read More »
Life cycle analysis shows solar panels and inveerters recover the embedded carbon in less than 11 months, or even more for the latest panels. Published by Fraunhofer and demonstrating solar systems are positive for up to 40 years.
Life Cycle Analysis for Solar Panels and Inverters Read More »
Electrical management systems have evolved from their large diesel engine power plant buinsess. They have flexible energ
Thin film solar ought to be a third of the cost of conventional PV panels and as low as 5 to 7 cents per Watt. 20 years in development and recently invested in by FFI from Fortescue Minerals Group.
Wind turbines do kill birds but are not the bird shredders especailly of rare birds such as raptors (eagles, kites). Painting one of the blades black reduced raptor / eagle deaths by over 70%.
Feral cats remain the most lethal risk to birds.
China has invested heavily in coal for electricity over the past 30 years but has made the switch to renewable energy and targets all new energy from renewable sources by 2025 and net zero by 2060.
We have burnt rocks for a million years and every year we burn 500 years of the products of the carbonaceas period as fossil fuel. Renewable energy is not fuel. It harnesses energy from the nuclear sun. Batteries can store it. RE stops energy poverty.
Backup generators have been used for conventional grid supplied electricity and are now moving to include batteries and solar to ensure households and businesses can keep operating even in extended blackout conditions.
An improved electricity distributon network will be needed to transport energy from renewable energy generators (solar and wind) to cities and factories. Who owns the existing network? What improvements are needed.
Evidence of increasing renewable energy comes from most countries. Australia is one of the fastest changing but the USA is also rapidly changing, as is China
Germany made a decision to build a new gasline from Russia – the Nordstream 2 for 11 billion. They could have invested the same in wind power and now save themselves $200 million per day of cost.
High Voltage DC transmission systems are driving underwater power cable for renewable energy transmitted over thousands of km from Africa to UK or Australia to Singapore. Cheap solar is driving the change.
The Carbon Footprint to build a wind turbine is paid back on average in 7 months, and costs about 10gCO2-equivalent compared to gas at 600, and coal at 1,000 g-CO2/kWh.
Recycling solar panels and wind turbines is a common arguement against renewable energy yet the industry has been steadily getting to 100% renewable components at end of life.
Wind powered electricity has been developed onshore, but the drive to offshore wind has picked up for 3 reasons. Decreased costs, no land impact and better wind profile
Geothermal energy is used in many countries. Quaise is intending to use gyrotron powered drilling to drill deeper to harness higher temperatures and pressure and convert fossil fuel stations to geothermal.
Green energy saves $5000 per year and Australia can do the Big Switch from fossil fuels to renewable energy with rooftop solar and batteries. Change is an increase wealth to households, not a cost.
Recycling effectiveness is poor because companies have passed the responsibility and cost of recycle / reuse onto consumers. Less than 7% of all plastic is recycled. Almost as much is dumped at sea. Time to change.
Coal mines continue to be constructed but face becoming stranded assets with the change to RW. But coal mines are half of the worlds mines and less than 17% of the revenue. Will other EV minerals replace them?
