Energy Cost
It’s 100 degrees outside – does it matter if your AC is set to 72 or 73?
As this heat bubble hovers over New England many folks are heading home on a Friday night to turn on two things – the Red Sox and their air conditioners.
As they collapse into their couches, is it a big deal if they set their thermostat to 72 versus 73 degrees?
Let’s do some back of the envelope math:
The US residential market consumes 1.5 billion kWh of electricity this year, air conditioning is 9% of the total electricity use, and the average retail price of electricity is $0.119 kWh
So if we all got used to setting our thermostats to 73 instead of 72 (a savings of @ 1-3%) we would reduce our annual energy cost by somewhere between $160 million and $480 million dollars a year.
Does 72 feel THAT much better?
What’s the Fracking problem?
Like a trendy social networking term, fracking has entered everyday conversation. For the sake of the US economy we should all hope the trend is not fleeting….
Based on the controversial horizontal drilling technique, the energy markets have already assumed new access to large US natural gas reserves, and consequently prices for natural gas are forecasted to stay low for the foreseeable future.
Of course investors are scrambling to participate, with the largest private equity firms getting ready to put down a large bet on the success of fracking. As one utility executive told me recently, “our electricity rate negotiation with the PUC is heavily based on fracking.” On the corporate front, Groom Energy customers have also priced in low expected inflation for their cost of electricity for the next few years. Which affects how they consider energy efficiency investments such as on-site generation with CHP, a gas to electricity arbitrage opportunity.
However, with uncertain, but potentially seriously negative environmental impact, the future of fracking remains unpredictable. Concerns range from polluting water supplies to causing earthquakes (which recently led to a temporary ban in the UK.) New interest groups are rallying to more closely regulate fracking or stop it completely. Investors are asking companies like Chevron and Exxon to report their activities. And after sitting on the sidelines, the EPA is finally considering how they’ll be involved.
The problem is that the outcome has the chance to be very binary.
Should the EPA come out with a policy which legislates more oversight and compliance, the markets would be largely unaffected.
But if they determine that the technique is environmentally unsound, and temporarily suspend it (like they did for offshore drilling after the Gulf disaster), stall it like nuclear post Japan or ban it (as France is already considering,) prices for short term and long term natural gas (and electricity) would spike immediately.
While we know over the long term financial markets are efficient and will price in either scenario, the latter outcome could be a body blow the US economy doesn’t need at this point.
Save Money – Time Shift Your Energy Demand
Recently in conducting our corporate energy assessments, we’ve come across more frequent situations where our customers are incurring high demand charges from their utilities. In most cases they haven’t known the relative size of these charges, nor that they can often be reduced or even avoided.
As we dig in, studying interval data from their utility bills and correlating usage with their operations, we typically discover that large loads (ventilation, chillers, machinery) can be time shifted an hour or two with limited impact to the overall business. Depending on the size of the load, time of day and the utility’s demand charge rate, this can have huge dollar savings impact. Read the rest of this entry »
What’s the escalation rate on your PPA?
Recently a customer had us model the energy production and financial return for a new 2MW cogen system at their manufacturing site in the United Kingdom.
Our analysis considered their contract cost for kWh and natural gas, the system’s energy production in kWh and therms, its full installation and annual maintenance cost and their UK tax benefits, including a reduced carbon tax from the UK’s Carbon Reduction Commitment. All in, the capital investment had a simple payback of 2.3 years.
When we built the system’s 10 year PPA model there was one big question – what escalation rate for kWh and gas should we use? Read the rest of this entry »

