MY CONCERNS

Reasonably good statistics can be obtained from SAIDI (System Average Interruption Duration Index), a reliability index that utilities publish that measures the average amount of time a customer experiences an outage. The following links provide both data and background.
https://www.eia.gov/electricity/annual/html/epa_11_01.htmlhttps://en.wikipedia.org/wiki/SAIDI

SAIDI information is comprehensive, but misleading. The numbers are reported on a per-customer basis, which dramatically understates the duration of an outage for those experiencing an outage. They take the total number of outage hours divided by the total number of customers served by that utility.

Since only a small percentage of customers are actually without power, you need to divide the SAIDI number by the percentage of customers who actually do not have power. For example, if the SAIDI number is 1 hour but only 5% of customers are actually without power, the effective outage duration for those without power is 1 hour / 5%, or 20 hours.

Averages are also misleading. There is a huge difference between being down once a year for an hour, and being down 60 times in a year for 1 minute each time. A one-minute power outage could require several hours to recover. It’s important to remember that how long your operation is down is more important than the length of the outage.

Outage duration follows a probability curve. The following graph displays the probability of an outage as a function of the outage duration.

The statistics can be confusing and very granular. Exergy helps you get the right information for your decision. Book time with one of our consultants here, it’s free.

Yes, but there is a trade-off: The more restrictions you place on generator usage, the less we can participate selling services to the grid. Since we share this profit with you, this directly impacts how much profit you earn from the generators. Other than that, there are no restrictions. We have numerous eldercare facilities that restrict usage during the evening and at night.

Our contract provides several options:

1. You can move the equipment to your new location; you are responsible for the cost to move and reinstall;
2. You can terminate our agreement by paying the Stipulated Loss charge, and sell the equipment;
3. You can terminate the agreement by paying the Stipulated Loss charge and Exergy will reclaim the equipment; we will pay you the salvage value we receive; or
4. You can have your existing landlord or new lessee take over the contract.

Most of our customers lease their space, so this is not an issue: The landlord simply signs an form stipulating that Exergy owns the equipment, and the equipment is not considered a fixture of the property.

Exergy guarantees that only new equipment will be used, the equipment will be serviced and maintained according to the manufacturer’s requirements and specifications, and all parts will be from the manufacturer. Additionally, we are responsible for all grid communications, permit filings, reports, and meeting regulations.

Typically, a technician can be on-site the following day, unless you elected for a higher service-level agreement.

Generators do not start immediately; the Fast-Start generators take about 10 seconds to start before they take on load – you will go dark for roughly 10 seconds. Non-Fast Start generators take about 30 seconds to start and warm up before taking on load. Note: this is only relevant during grid outage, not when Exergy uses the generator to sell services to grid – when Exergy uses the generator for grid sales, we start the generator early and ramps it up fully before synchronizing the generator to the grid and transferring the load. Your operations will not be affected when the generator is used in this manner.