Showing posts with label building preservation. Show all posts
Showing posts with label building preservation. Show all posts

Thursday, May 23, 2013

Leveraging NYC Clean Heat for Renewable Energy Retrofits

The NYC Clean Heat program is one of the many examples of good intentions gone wrong, for by and large it misses the opportunity to push the city towards renewable energy. Instead, it is diverting capital to a temporary fix, leading to NYC boiler conversions to natural gas, when far better options might be available, better for the city, for the tenants and for building owners. Large numbers of C- and D-class apartment buildings, particularly in the outer boroughs, such as the Bronx, which typically are burning #6 or #4 oil would have an easy time shifting towards renewable energy instead of to natural gas (or even biodiesel).
It is true enough that natural gas is less polluting than #6 residual oil, or even #4, but from the standpoint of building preservation. However, these buildings would be generally more viable economically in the long-term by switching to renewable solutions.because renewables offer a permanent energy price hedge, and lower maintenance costs. The only way to get buildings out of the economic trap of energy price hikes is renewable energy. Probably 50-75% of buildings in this particular class are capable of making the switch.

The right use of The NYSERDA MPP

To make the transition to gas attractive the NYSERDA MPP program offers a wraparound for overall efficiency upgrades to buildings, and which is in many cases not the best option if it leads to merely making a fossil fuel system more efficient, instead of switching to a renewable alternative. The financial methodology of that program is geared to making the existing infrastructure more efficient, not to evaluating alternative solutions.
The idea should be to make the transition to economic sustainability and increased competitiveness with renewables. Only if a renewable solution is not in the cards, is the marginal reduction of CO2 and particulates emissions helpful, but again, not if it distracts us from the major goal of switching to clean energy and becoming energy independent. If the NYSERDA MPP is used to finance a conversion to natural gas, it misses its potential, as long as an alternative is possible for a particular building. Very simply, 30 years of no energy bills will beat 30% savings any time. Owners sacrifice future value of their buildings if they make the wrong choice.
Obviously, if we can make it to a renewable energy infrastructure, we are going to outperform the mere switch from oil to natural gas. Thirty years of no energy bills will always beat out a 30% energy savings, if you can do it economically. The thing to do would be to pursue an exemption from the Clean Heat conversion, and do a 30 year energy plan for the building, such that the first phase qualifies you for the NYSERDA MPP program.
MAJORING IN A MINOR
Both NYC Clean Heat and the NYSERDA MPP focus on a secondary objective first and thereby falsify capital decisions, and cause capital destruction. Naturally, in some buildings there is no renewable option, so that's bad luck. Anyone who has done any financial modeling or operations research work can tell of how bad it can be if you major in a minor, if you optimize a system for a secondary objective, not the primary one. For a building, the primary function should be the long-term Capital Asset Value of the building. The renewable energy building will be worth some 10-20% more, hands down, in 5 or 10 years, than its fossil fuel (or even biodiesel) burning twin. The exact spread will depend on energy prices, of course.
Energy Efficiency is the secondary variable that can either make a fossil fuel system more efficient (not green!) or make a renewable energy system more economical (very green). The confusion in the public dialog is that energy efficiency is misrepresented as green, which is merely a way of greenwashing fossil fuels. Energy efficiency is only green if it helps you make a renewable system economical, and in that case there is a direct compound return, because e.g. better insulation will reduce the installed capacity needed.

An alternative conversion program

Here is the outline of the renewable energy strategy:
  • Make sure that phase one of your plan meets or exceeds the criteria for NYSERDA's MPP.
  • Get an exemption from the Clean Heat conversion program because you are going renewable.
  • Typically, the first step is to take Domestic Hot Water (DHW) off the boiler, and implement either a geothermal or a solar thermal solution, which will typically achieve a 25-50% reduction of your BTUs for heat and hot water. (Because heat is seasonal, but hot water is year-round).
  • With your exemption you should get a clear agreement that for economic reasons your are doing the next step (heat) when you need a boiler replacement.
  • By doing this, you have bought another 5 or 10 years of economic life for your boiler, because it'll be off-line in summer.
  • At the end of the economic life of the boiler, you then can go to either a renewable or use the best fossil fuel solution available then.
  • For details, see www.dabxdemandsidesolutions.com
It should be noted that the City has recently begun studying geothermal energy, which is important for this program and has already provided a powerful solution to many buildings. Also wind energy should move to the top of the agenda as more suitable designs are appearing on the market which are geared for installation on buildings.

 A long term renewable energy plan

The trap of all programs that focus on marginal efficiency improvements, such as the NYSERDA MPP, is that they focus on only ONE point in time, and ignore the long term plan for a building. The truth is that the path of energy efficiency, which is prioritized in the NYSERDA MPP, in most cases shows the quickest returns from some effiiciency gains, but if you did a 30 year CAPM analysis of your building, you would see that subsequent investments in energy efficiency face strongly diminishing returns. By comparison the renewable energy plan is more capital intensive up-front, but usually superior, because you get 30 years of (nearly) no energy bills, not merely a 30% reduction in consumption.
We should also note that if subsidized finance is used to switch buildings to natural gas, that would have otherwise been capable of switching to renewable energy, that is really an indirect subsidy of some energy company, and of the fossil fuel industry in particular.

Conclusion

The need to switch away from #6 and #4 heating oil, should be leveraged for converting to renwable energy, not natural gas, whenever it is feasible. Owners who do will see at least a 10-20% increase in building values over the next 10 years, if they follow through.
If you do a proper 30-year energy plan for your building, with a good understanding of the engineering interdependencies, two things will become clear:
  • if your building is suitable, a good renewable energy solution will beat out mere "efficiency" of a fossil fuel solution.
  • And, number two, you can use some of the programs that now exist to help secure financing for your conversion.
NYC Clean Heat provides the motivation, and the NYSERDA MPP can be used on behalf of a conversion to renewable energy.

Monday, May 13, 2013

NYC Clean Heat Destroys Property Values

PlaNYC Heating Oil Regulations are pushing buildings from #6 and #4 oil to #2 oil, natural gas, or biodiesel. Conversions are in full swing. Sadly, many of the buildings are suitable for renewable energy conversions which would produce far better results for the environment and for occupants, as well as better long-term financial results for owners. It says on the website that owners can apply for compliance waivers through NYC DEP. Owners should do this if their buildings are suitable and if they have the financial wherewithal to make that transition to a renewable solution. As long as a credible renewable solution can be found, owners are in fact placing a long-term hedge on their energy costs, and will do far better than they would going along with the conversions which the City is pushing. The typical 30% gains in efficiency are too easily wiped out by the next energy price hike.

Compound investment returns from energy independence through renewables

Not only are these conversions counterproductive as long as there is a renewable energy alternative, owners are being offered subsidized financing to make it easier to make the wrong decision, and destroy the asset value of their buildings. Having said that, there may be some buildings that realistically could not make a transition to renewable energy economically, but in many cases it is well within reach to do in buildings that are 40 units and up. (Size matters because of economies of scale). In the long run, this will produce a steady path to asset appreciation.
Presently we are in PlaNYC 2013, but it started in 2007 as Plan NYC 2030, and since then evolved to PlaNYC 2.0. Clearly this is an extraordinarily important plan, and it puts NYC in a very proactive stance with respect to climate change issues, but in this area of renewable energy, not nearly enough is being done. Most of that shortfall rests on the general confusion in our society that energy efficiency somehow is an additive phenomenon and would result in energy independence. In that context renewable energy is then relegated to a marginal role. If you were to actually do a long-term energy plan for a building, you would see this is not so, unless the building is not capable of a renewable conversion. Most of the buildings that burn #6 could do it.
The first issue is a choice of what energy system do I want? Do I make my energy (renewables) or buy my energy (subscription-based, gas, electric, oil). The two paths are to a large degree mutually exclusive, because of engineering interdependencies. One clear example, if I can go the renewable route and perhaps eventually eliminate gas for cooking, and most heating/cooling, I may be able to eventually do centralized HVAC, and choose very different replacement windows, etc.
Most importantly, the path to energy efficiency of my existing fossil fuel system is an investment in becoming a long-term consumer of gas or oil, or even biodiesel, so it is a customer retention program for the energy industry. In this case it is driven by the well intended reduction of CO2 and particulates emissions of gas versus oil, but as long as a renewable alternative exists, the latter would produce greater benefits in the long run. Successive investments in energy efficiency produce strongly diminishing returns, so a property owner paints himself into a corner financially. Once the transition to a renewable infrastructure can be made, the financial future of that building is assured, because subsequent investments will produce compounding results. The transition to renewable energy practically ensures building preservation, because of superior economic performance over time.

Underwriters risk collateral values by underwriting energy efficiency

If you check the website for NYC's Clean Heat program you will see energy efficiency as the sole qualification for subsidized financing. All the usual culprits are there, CPC, NYSERDA et al, many of whom have energy credentials, for this conversion effort is a subsidy to the energy industry to the detriment of building values. Underwriters should learn to test for the difference between energy independence (renewables) vs. energy efficiency of carbon-based energy systems, simply because of the issue of diminishing returns with the former, and compounding returns with the latter. Energy Efficiency loans are riskier than Energy Independence loans, by far. To lump them all into one category is bad for owners and bad for underwriters. Building values for buildings that are 50% or better energy independent would rise strongly over the life of the mortgage, compared to buildings that invested in energy efficiency alone.

DaBx PlaNYC 2020: the Energy independence plan

Energy Independence
Windspeeds over NYC are higher than Chicago
With my consulting company DaBx Demand Side Solutions, we offered an alternative model to Mayor Bloomberg on July 4th 2011, which would achieve better results, and faster than the mere conversion from #6 to natural gas, and, as noted above, better financial outcomes for building owners. The plan is within reach for probably at least 50% of the building stock that is now converting to natural gas. It is more capital-intensive at first, but not much so once you evaluate it against the alternative of the forced gas conversion. The outcomes for air quality and building preservation would be far superior, not to mention public safety and national security. The conversion to gas only seems easier and cheaper in the short run, it is not if you do a 30 year energy plan for a building.
The basic model is based on understanding that in C and D class apartment buildings that are usually only 6 stories high, the old steam boilers usually provide Domestic Hot Water (DHW) through a coil in the boiler, and 30-50% of BTU output of those boilers goes to DHW. In those cases, economically feasible solutions can start from providing DHW with renewable energy, either geothermal or solar thermal. This eliminates 25-50% of CO2 and particulates emissions right away, it also gives the boilers the summer off, so it extends their useful life, and then at the time when the boiler dies from natural causes, the conversion to renewable HVAC can be completed. And yes, the famous split incentive between landlords and tenants needs to be cured.

Energy independence, wind and geothermal energy

Energy independence of buildings means the building stays lit during an outage, even if only partially. The two technologies that have been underappreciated so far are geothermal and wind power. In 2008 the press practically ridiculed Mayor Bloomberg about his advocacy for wind power on buildings, but they did not understand that specific wind turbines for buildings where just starting to come to market, and the Mayor was right on target, perhaps without knowing it. Average wind speeds around NYC are higher than in Chicago, supposedly the windy city. Moreover, around buildings, wind speeds pick up dramatically, offering excellent opportunities for wind power especially in the city.
Geothermal is the most strategic technology of them all, and City Hall is only just now starting to research it. Basically a geothermal system gives you a 400% gain in BTUs, and most importantly it can act as energy storage, besides providing domestic hot water. Here is one place where compounding returns come in, for energy storage is the single biggest problem in renewable energy, but DHW ends up acting as energy storage for your building. Unfortunately most existing geothermal systems in apartment buildings were wrongly designed, as DHW only, and not for energy harvesting. Buildings need 30 year energy plans, not point solutions.
Conclusion:
PlaNYC can be much more successful if the confusion between energy efficiency and energy independence through renewables is eliminated. Better outcomes for building preservation, air quality, and economic competitiveness of the city would result. Energy efficiency of a building with a carbon-based energy system is financially inferior and prolongs the period of CO2 emissions, energy independence through renewables reduces CO2 faster.