Dallas Art Show

High-Tech arts were everywhere at Dallas Art Show last week.

There was a cool white LED art (not the one on right). From the distance, it looks like a massive and long light fixture. You wait a couple ten seconds, the lights start flickering and you see birds fly in and out of the screen. Neat surprise yet calming.

Scoop the poop :)

This sign gives me a grin whenever I walk by it on the trail.

Yeah, you know you have to scoop your doggie's poop on the public land. But, no one will be happy to be told that unless they point out that your "doodie".

Look at his eyes...you just have to smile and scoop that poop.


Electricity Transformation - part 5

Compiled List of New Renewable Energy Sources

In the report “The Long-Term Energy Efficiency Potential”, ACEEE projects three scenarios. Reference Case is business as usual, Advanced Scenario includes penetration of know advanced technologies, and Phenix Scenario includes greater infrastructure improvement and aggressive displacement of existing building stock.
Under Advanced Scenario, residential and commercial demand will reduce by 49% and 36% respectively. Under Phenix Scenario, 61% and 48% respectively. I used 3 billion MWh, 75% of total consumption, half residential and half commercial as base, applied % of reduction to each sector. Reduction appears to be lower, which might be because I have not included other possible reductions from industrial sector.
If we follow Advanced Scenario, we can eliminate coal, natural gas and reduce nuclear. If we follow Phenix scenario, we can eliminate coal, natural gas and nuclear, plus some surplus.

Electricity Transformation - part 6


Being efficient (= not wasteful) is smart. It means getting more for less. Everyone likes that except the ones benefit from wasteful behaviors. Strong political and public influence from those powerful who benefit have made it difficult for many to see the obvious until now. Well, the time has come. We can see the facts and don’t get fooled anymore.
To make building twice or more efficient, we need aggressive policies and tighter codes for all new build and major renovations. Much higher HVAC and lighting standards will be needed, as well. Industry professionals are ready to put their skills and knowledge to use in order to meet and exceed higher standards. For residential small projects, DIY easy low cost upgrades need to be encouraged with improved kits and materials.
We can overcome initial cost issues for larger upgrades with attractive and transparent financing program like PACE.
As we already have technologies needed for build environment energy efficiency to reduce 1 billion KWh, with right policies and financing, future we want to have will be in our hands.

June 7, 2013



Electricity Transformation - part 4

Problems, Barriers, and Policy Issues

According to McGrow Hill Construction, after 2007 federal law, the Energy Independence and Security Act, building industries have embraced green build. 44% of new commercial construction is green building in 2013. That is expected to increase to 55% in 2016. 22-25% of new residential is green build in 2013, which is expected to increase to 29-38% in 2016. Policy change was the main driver for this transformation. Policies do have huge impact.
The same applies to the other side. As described earlier, fossil fuel industry projects renewable energy stays flat in foreseeable future. That’s what they want for obvious reasons. And they try hard to influence policy makers, media and public to keep it that way. (Edit: As I was finishing up this report, the article came up in bloomberg like to prove the point. “Chemical companies are lobbying the U.S. Congress to limit government use of proposed, tougher green-building codes in the hope that alternative standards may be adopted.”)

Electricity Transformation - part 3

Timeframe for Completion

I certainly hope ACEEE’s projection will be realized, and will work to be part of the effort. However, it may be too soon to declare that’s going to happen. Not everyone is on board and some fiercely oppose this movement.
The report titled “REN21 Renewables Global Futures Report” shows the stark difference in future renewable projections among different industries and viewpoints. Not surprisingly, large oil companies such as Exxon Mobile project renewable share in electricity production will be still 16% even in 2040. (In this report, DOE target in one of the figures shows similar number). Environmental organizations such as Greenpeace pictures it’s share reaches 61% in 2030 and 94% in 2050.


Electricity Transformation - part 2

Description of Each Renewable Energy Source

I will explore energy efficiency as I believe it must be the first priority. Just like in nation's debt reduction or personal finance, if money is wasted foolishly and nobody pays attention to curve the spending, problem will continue and likely result in sudden bankruptcy. This is true even with some revenue increase. Building asset takes time while depleting it can happen quickly. Improving energy efficiency is like understanding your cash flow and balance sheet, setting up budget and paying off your debts.


Electricity Transformation - part 1

I have been taking some interesting courses through Coursera. "Global Sustainable Energy" was one of them. I wrote following as one of the homework assignments last June. Energy climate is rapidly changing. Data I gathered here is already outdated - for better I may add. What I wrote seems widely accepted now.


According to EIA data, the US generated roughly 4 billion KWh of electricity in 2012. Its breakdown by source indicates about 68% was from fossil fuel sources (coal, natural gas, and petroleum). Below is the total breakdown:




花粉舞い 雨ふらず 空を見上げて ため息をつく