Solar Hot Water Solution for Commercial Clients

1. Solar Hot Water Solution for Commercial Clients Fort Bragg Military

2. Why Solar Hot Water? • Solar energy is a renewable form of energy that can supply a signficant portion of your company’s domestic hot water demand for applications such as cleaning, cooking, and space heating. • Domestic water heating can represent up to 30 % of your company’s energy needs, and a solar energy can displace up to 40 % of your fossil fuel and/or electricity demand that you currently use to heat water. • In doing so, solar energy allows your company to reduce its annual expenditures on fossil fuel and/or electricity. • A solar domestic hot water system will allow your company to fix the price it pays for a significant percentage of the energy needed for water heating, at a price that is at or below the forward price of fossil fuel and/or electricity. • This serves as a hedge against rising prices for natural gas, heating oil, propane electricity • Because solar energy is renewable and sustainable, a solar domestic hot water system allows your company to permanently reduce its annual carbon emissions. • Depending on your company objectives, it can contribute to any efforts to attain LEED certification. • Because the installation, operation and maintenance of a domestic solar hot water system is performed by a local workforce and cannot be outsourced, it helps support the local economy.

3. What Does It Take to Implement a Solar Hot Water System? • It requires a capital investment that – depending on how structured – can achieve energy, cost and carbon reductions while at the same time can meet acceptable targets in terms of IRR and simple payback. • It takes careful sorting through of the economics of the investment including costs, tax incentives, other financial incentives and ownership structure. • It requires the design, installation and maintenance of a solar hot water system, integrated and consistent with the thermal demands of your operation.

4. How do I get my hot water now? • Water heating is a thermodynamic process using an energy source to heat water above its initial temperature (ground water is typically at around 55 degree F) to temperatures between 100 and 200 degree F. • Usages include cleaning, cooking, bathing, and could include space heating. • In typical installations, potable hot water is heated directly – commonly referred to as Domestic Hot Water – in a water heater or some other vessel. • The most common energy sources for heating water are fossil fuels (such as natural gas, heating oil or propane) or electricity. • There are variations of a domestic hot water system such as indirect heating and instantaneous systems.

5. How Would a Solar Domestic Hot Water System Work? • A solar domestic hot water system uses solar energy to replace, or displace a portion of, the primary fuel source used to heat water in the system. • The basic construct of the solar domestic hot water system is a solar collector(s) positioned on or by a building or residence to harness the sun’s energy, a fluid system to transport the heat from the collector to its point of usage, and a reservoir or tank for heat storage and subsequent use. • With usable being available during a 6 to 8 hour period of the day, virtually all solar domestic hot water systems, aside from pool heaters, use an auxiliary energy source, such as fossil fuel or electricity.

6. Some details on a Solar Domestic Hot Water System • There are several basic types of solar collectors: • Integral collector storage (ICS) • Flat plate collectors • Evacuated tube collectors • Concentrating collectors • Pool collectors • Air collectors • Key terms in describing and identifying systems: • Direct vs. Indirect systems • Passive vs. Active systems • Open-loop vs. Closed-loop systems • Two-tank vs. One-tank systems • There are several types of solar domestic hot water systems: • Integral collector storage (ICS) systems • Thermosiphon systems • Open-loop systems • Draindown systems • Drainback systems • Closed-loop antifreeze systems

7. Does a solar hot water system make economic sense? What are the factors that determine whether or not it does? • Insolation (geographical) • Location-specific solar availability (i.e., shading) • Positioning of solar collectors • Type of collector/system and suitability to application • Profile of domestic hot water load • Quantity • Daily/seasonal fluctuations • Fuel/energy cost • Efficiency of existing hot water system • Cost of solar domestic hot water system • Capital cost • Annual O&M • Federal, State, Local, Other incentives • Ownership structure/ability to utilize ITCs

8. Analysis of System – Assumptions to Review

9. Analysis of System – Costs and Benefits to Review

10. How can Solargenix help? What are the next steps? • Solargenix participates along all segments of the value chain: • Manufacturing and assembly of solar collectors and systems • Feasibility analysis • System design • Installation and integration • Financing and asset structuring • Commissioning • Settlement of filings, submissions for realization of all incentives • Long term operations and maintenance • Monitoring and recording of energy savings and carbon reductions • Solargenix can provide products and services along all parts of this value chain. • However, to help your company deal with the complexity and ultimately receive what it really wants and needs – hot water at the correct temperatures when it’s needed… • Solargenix will build, own and operate your solar domestic hot water system • Supply your company with long-term, renewable solar energy at a fixed price • This can provide your company with a renewable, sustainable hedge against rising energy prices without dealing with the challenges of owning, operating and maintaining a system.