Showing posts with label efficiency. Show all posts
Showing posts with label efficiency. Show all posts

September 8, 2024

Distributed home wind turbine outperforms solar panel

Savings from oil and coal importation

Solar does only 20%

Advantages:

1.   Produces 6 kwh 
2.  Cost about $7,000
3.  Lasts 25 years
4.  ROI for only 5 years (more than 10%)
5.  Multi directional.

Downside not many places have wind.  





August 3, 2024

New method of storing energy - TPV - Themo Photovoltaic

Savings from oil and coal importation

Why do we need this?   Hydropower turbines operate at 60% efficiency,   steam  turbine at 30%.  We need more efficient energy generation and storage
 

An energy source melts down tin at passes room with inert gas so that tin does not oxidize.  Then the heat is stored in graphite .  With a large surface area, the heat does not dissipate for months

What do you think?




May 29, 2013

Energy Efficiency Strategy of Solar City

Repost from Greentech Energy by Eric Weschoff | May 16, 2013

As we process our initial installation, we noted that the high electrical bill of P29t a month is due to several factors;

l.  Aircon use
2.  Daily watering and use of water pumps
3.  Use of high wattage metal halide lamps.

Recommendation on energy efficiency is needed aside from going solar:    proper use of metal halide or shift to LED lamps, solar air con.

Thus Solar City had its energy efficiency audit team;  now it acquired Building Solution, a company with software solutions for energy efficiency.   The firm got financing from Admiral Bank to do a $2t to $l5 t energy audit of homes  and suggest measures that would mean 20 to 50% savings (wow)

Solar City has done l5,000 energy audit but will not be doing this in house anymore.

US homes spend about $241 billion a year on energy or $l,900 per home.  The PV is just a small part of that pie